This is a fanfic. BUY THE FUCKING MERCHANDISE!
It all had happened so fast.
The reveal of God (of the Bible) being dead since the Great War.
Issei gaining a Persona.
But the Phantom Thieves were used to that kind of pace. Whenever one of them had unlocked their potential to summon a Persona, they were able to get into a fight immediately. Just the feeling alone one got when they gained the power of a Persona made them feel unstoppable. It's almost as if what happened before didn't matter at all. All that they cared about now was the present.
The brunette with a new Persona was the one to ignite that flame that burned within all of them.
With the many spears of light Kokabiel had created, he had the creations hurled right towards the group that opposed him and his goal.
"Fire at will!" Akira called out, pulling out his special pistol.
Everyone else got their own firearms ready while Issei had already pointed and was shooting with Akira. Soon, bullets filled the air and were directed to the light weapons that headed for them. With their sudden heavy barrage, Kokabiel was blinded by the flashes the two projectiles colliding with one another.
Everyone knew what they were supposed to do next. But Sona decided to speak aloud to confirm it. "Now's our chance! Attack!" She exclaimed. Not only her, but Rias, Akeno, and Ravel all had their wings flap open before they took to the skies.
Akira only smirked at Sona's words. "You heard her, guys! Let's get moving!" He motioned with his equipped arm with enthusiasm. With loud cheers from the Phantom Thieves, the entire group, the rest of the Devils, even Irina and Xenovia, began charging right towards the enemy.
Kokabiel blinked repeatedly, shaking his head to rid himself of temporary blindness. Watching the opposition simply run right towards him, the Fallen Angel attempted to obliterate the ones that he saw on the ground. But before he could even raise his hands to attack, he raised the limbs instead to shield his eyes when energy, fire, ice, and lightning all came falling and knocking up debris while striking him.
With his vision obscured once again, Akira took the opportunity. Using both of his arms to gesture to the left and right at the same time a couple of times. Turning around to run backwards, he pointed at Morgana with his left hand and Futaba with his right. Watching the male signal which way he wanted them to go, the cat leapt forward into Akira's grasp while Futaba took to the skies in Necronomicon.
When that happened, Ryuji and Yusuke went to the left. Meanwhile, Ann, Makoto, and Haru went to the right. [Kiba, Asia-chan and Koneko-chan, you three go to the right! The rest of you, to the left!] Futaba ordered from inside of her Persona, already getting ready to support whoever needed help.
As everyone parted ways to follow the other Phantom Thieves, Issei noticed that he was the only only not given any orders. "Wait, what about me?" He asked in confusion, pointing at himself as Ddraig only snorted and growled behind them.
"Simple." Akira answered, tossing Morgana into the air. Arsene appeared then grabbed the cat by the scruff of his neck. "Show us what you're made of!"
The humanoid-looking Persona immediately began to wind up and threw Morgana like a baseball. The cat careened right towards Kokabiel who did his best to fan away all the dust that was kicked up due to the multiple projectiles that had struck around him.
But as the Fallen Angel saw the feline fly right towards him, Morgana had dived right down the collar of Kokabiel's clothing.
"What the-!" Kokabiel cut himself off, feeling the cat just suddenly scurrying around his clothing as if its life depended on it. His pale hands began to constantly try to grab Morgana, but the feline proved to be a lot more elusive than he looked.
"Here I am!" Morgana announced, poking his body out behind Kokabiel's head. He pulled back the chains of Sudarshana and shot the back of the Fallen Angel's head at point-blank range. The cat then immediately ducked back into Kokabiel's clothing as the male angrily looked in the direction where he had been hit.
"Over here!" Morgana now peeked out from under Kokabiel's right arm and shot at the black-winged angels face. Scurrying back in, Morgana then appeared at the left hip. "Peek-a-boo!" The cat fired again then went back into the clothing. Kokabiel growled, grabbing his collar and got ready to snatch the cat by planning to reach into his clothing. But when he pulled, the Fallen saw the slingshot aimed for his face. "I see you!"
Morgana then popped out of the collar after releasing a final shot and ran away.
"Damn animal!" Kokabiel exclaimed, preparing a spear of light to throw.
"Oh no you don't!" Issei claimed, charging right towards him with the Ddraig Persona right behind him. The dragon spewed fire, hotter than any of the fighters near the action had ever felt. The Fallen Angel immediately rolled to the side, not even wanting to chance being a second inside of the flames.
When he got to his feet though, Issei had appeared right in front of Kokabiel from the fire with a double-barrelled shotgun equipped in his right hand. When the brunette had his entire arm extended, the tip of the barrel reached just reached Kokabiel's stomach. But just as the new Persona-user pulled the trigger, the Fallen had managed to side-step the spread.
"Is that it?" Kokabiel asked. "While I do commend you for that surprise attack," He then raised his hands to strike with his preferred element. "It was predictable!"
But then Issei immediately brought the firearm closer to his body, using his free hand to grab the top of the shotgun. "Predict this!" Just as Kokabiel was about to attack, the brunette quickly directed the barrel back at the Fallen and shot again, using the recoil to retreat out of the way.
In pain due to the point-blank damage from a shotgun, Kokabiel seemed to be a bit angrier than he was earlier as he rubbed his chest. Looking to the right, Ryuji, Yusuke, Xenovia, and Irina were all skating on sheets of ice Goemon was producing. All the humans immediately bent their knees while sliding, leaping up when frozen ramps were created for them.
Yusuke was the first among the crowd, having his blade drawn. Spinning in the air, he tried to slash Kokabiel but was blocked by the Fallen's light-based weapon. Ryuji came in soon came in with a yell, trying to hit the head. But due to his noise, Kokabiel simply made another weapon to block the blonde.
"Is that really all you got?" Kokabiel taunted. "I thought that with that sudden burst of confidence, you would all try to do something-"
But as the Fallen Angel had eyed both Phantom Thieves, he then saw that the two exorcists were on both of his exposed sides. While Captain Kidd was transporting Irina towards the enemy, Goemon gracefully launched Xenovia in the desired direction.
"Foolish!" The Fallen exclaimed, simply pushing his arms around so that Yusuke and Ryuji would block the way of attack.
[That's what you think!] Futaba said while tapping several icons inside of Necornomicon. [Here we go… and ultra charge!]
Both Phantom Thieves immediately released the grip on their weapons. Just before landing on their feet, small tornados of white light wrapped around the four humans that were currently attacking. While Yusuke rolled forward on the ground, Ryuji whacked the back of Kokabiel's leg with his shotgun while Yusuke shot the kneecap.
Causing the Fallen to buckle down, Kokabiel immediately felt two blades slash his front and back.
While the exorcists had grabbed the Phantom Thieves to help them escape, The Fallen Angel growled in pain. The two Excaliburs certainly did their job in being effective against their enemy. Generating light, Kokabiel immediately hissed when he put the element against the wounds, cauterizing the massive cuts.
Looking up, he raised his hand to stop Issei from swinging a massive rocket launcher around. But the strength behind the boy surprised the Fallen Angel as the old being had skidded along the ground but still retained footing. Shaking his hand in pain, Kokabiel challenged the next swing Issei attempted by using both hands as well as a spear of light.
Both weapons clashed, causing the two of them to struggle for dominance. Kokabiel managed to win their trade, sending the boy flying back and rolling. Completing his full swing, the Fallen spread his wings and charged right for Issei.
All the Devils in the sky that watched the entire ordeal on the ground play out continued to stay in the air. But when the red-head and her Queen saw what the Fallen was doing, they both got their magic ready. [Wait a moment!] Futaba's voice rang through their heads and they all looked at the UFO-Persona.
"Why?!" Rias questioned, pointing down to the ground. "Kokabiel's heading right for Issei and none of you are doing anything!"
[…Okay, yeah, that's true.] Futaba admitted. [But you remember what Akira said at the beginning of the fight? He wants I-cchi to show what he can do. Stuff just can come to a Persona user in how to use their new powers. It's a spur of the moment kind of thing since the Persona is technically them. Just give I-cchi a chance.]
"Look!" Ravel exclaimed, pointing in the direction of the action. "Hyoudou-san looks fine!"
Issei had gotten back up to his feet almost immediately, spinning in the air and skidding on the ground due to the momentum behind the force that launched him. While keeping his feet firmly planted on the ground, Issei then planted the barrel of his rocket launcher onto the ground. Opening the part that would have revealed the chamber where a rocket would be loaded, several mini-rockets began to fire out from the space.
Having already charged in too closely, the Fallen Angel was immediately consumed by all the tiny explosives that made contact with his body.
But the assault didn't end there. Ddraig slammed its massive front-right foot down just as Kokabiel was flying away from the burst of flames. Just as it crushed the Fallen, the dragon-Persona brought up the limb. Using the tips of its claws, Ddrag pinched the head of the enemy and brought Kokabiel up to its eye-level. The Persona then exhaled smoke, causing the Fallen to cough before getting his face slammed in by the snout of Ddraig. Almost as if dismissive, the dragon dropped the one in its claws to the ground.
"You… you all will-!"
Kokabiel didn't even get to finish as he got back up to his feet when he heard a cannon fire.
He then felt two feet plant themselves on the back of his skull with the force of a cannonball.
Being sent skidding down the ground face first, Kokabiel looked up to see that the culprit was Koneko. The white-haired female seemed to be dusting herself off as Milady and Haru approached her from behind.
"Are you okay, Koneko-chan?" Haru asked with a bit of a worried look after a light jog. "I know it was your idea and everything, but I'm still not certain if you were hurt being fired out of Milady like that."
"It's fine, Okumura-senpai." Koneko answered, eyeing Haru. "That Heat Riser spell you used seemed to be very effective." She then continued to wipe off some black marks on her skin. "Plus, something broke my fall."
As they both looked forward, Haru quickly stepped in front of Koneko with her axe up to defend herself. Just in time, the heiress blocked an attack from Kokabiel's fist. Unfortunately, the force was strong enough to knock her away from the white-haired girl.
Koneko, now left alone, knew that she didn't stand a chance against the Fallen Angel alone. Attempting to flee, she found herself suddenly being brought up in the air with a hand wrapped around her neck. Grabbing the wrist, she put in futile effort to try and break free. But she was not strong enough and found herself being slammed onto the ground.
Cracking the ground with the girl's body, Kokabiel got his other hand ready with a spear of light to stab Koneko. But just before he could, the element was destroyed, and he turned around to see that a sword of all things cut right through the energy.
Kiba made sure to not give Kokabiel the chance to react so the blonde followed up on his attack immediately. Spinning in the air while releasing the sword that was in his hand originally, the boy produced two blades and slashed. The Fallen Angel however proved to have fast reflexes, just managing to grab the swords before they could cut his face.
Grunting while feeling a bit of a stinging sensation on his leg, he looked down to see that a tether of sorts was wrapped around his knee as the limb was encased in ice. Following the line, Kokabiel's eyes soon laid upon Ann holding a whip.
Chuckling in amusement, Kokabiel was distracted to notice a tree made of ice grow from the ground and trapping his other leg and about half of his body. When he realized his condition, he looked to his side to see Asia holding a card with a large snowflake (Bufudyne). Snarling, he raised his hands.
But then his reaction was too late as he immediately found himself engulfed in a pillar of fire while being launched sky high. Riding the pillar up before the heat died down, Kokabiel heard a cannon fire again. Looking over, her saw Koneko in the air right above him before she somersaulted in the air and slammed Kokabiel towards the ground with the back of her foot.
Before the Fallen Angel could even touch the ground, Makoto came roaring onto the scene with Johanna. Skidding to a halt just right under the falling character, she pulled out Judge of the Dead and shot Kokabiel's shoulder before he hit the ground. The impact from the bullet caused the Fallen to tumble around more in the air and land right behind the motorcycle-Persona.
Koneko came falling from the air soon after, planting both feet right against the black-winged being's back before hopping forward. When the white-haired girl sat down quickly while grabbing Makoto's waist, the brunette began to rev the motorcycle. While this happened, blue energy roared right out from the exhaust pipes and into Kokabiel's face before the two rode away.
"Enough of this!" Kokabiel roared out, slamming a fist onto the ground in frustration. The impact caused the ground beneath him to crack. "I am Kokabiel, Angel of the Stars! You should all fear me! Compared to you all, I have the strength of a god!"
"How nice." Akira drawled out in an unimpressed manner. "In that case, you should fear us." He countered, not even intimidated by the rambling of the Fallen Angel. He had his arms folded even as Kokabiel was getting up. "We killed a god."
That response just seemed to irritate Kokabiel as the Fallen charged right towards Akira in a blind rage. But before he could even reach the human, Issei came running in front the side. Grabbing the Fallen Angel by the arm, Issei threw him away from the spot while tossing several sticks of dynamite in the same direction.
Just before Kokabiel hit the ground, the explosives rolled under the Falllen. With explosions detonating under the body and throwing him in the air again, Kokabiel couldn't react fast enough when Ddraig balanced two talons against the Fallen's stomach. With an easy rotation of the limb, the dragon-Persona slammed Kokabiel to the ground.
With a flick of its claws, Ddraig sent Kokabiel skidding along the ground. During the grind, the Fallen Angel recovered by rolling backwards. Holding his arm out, Kokabiel created a spear of light which stabbed Issei in his leg.
The contact with the holy element against is flesh cause the boy to scream in agony. Issei then went limp for a couple of seconds as he fell to the ground in a crumpled heap. While the brunette hissed in pain, Kokabiel stabbed Issei's other leg before kicking the boy across the ground.
But Ddraig was right behind Issei, catching the brunette in its mouth. Rearing its head back, the Persona spat Issei out like a bullet and the boy was careening back to the Fallen Angel with all dynamite sticks ignited. Upon slamming his head against the black-haired male's, all the explosives detonated and consumed the two of them in fire.
As the two of them few out of the flames, Rias caught Issei while Akeno was carrying Asia up to heal the boy. With Kokabiel meanwhile, he straightened out his positioning in mid-air and tried to regain his bearings. But then he quickly found that the middle of his body was completely covered in a large, thick layer of ice, completely immobilizing his arms.
When Kokabiel looked around, his eyes fell upon Sona and he glared. Despite his predicament he still managed to spread his wings and flew right towards the black-haired female.
But just before he reached her, Akira came flying in while holding onto Arsene. The Persona grabbed the Fallen by the foot while tossing the teenager into the air. Seeing how the ice was big enough for Akira to stand on, it provided to be a landing surface for him.
Cracking his knuckles menacingly while narrowing his eyes, Akira grabbed then flourished Paradise Lost and the Tyrant Pistol. Stepping around Kokabiel repeatedly, he became a furious blur of gunshots and slashes. Eventually, Akira placed a Megido Bomb against the Fallen's chest and flipped backwards off the slippery platform.
As Arsene caught Akira and the bomb detonated, Kokabiel careened to the ground. Just upon impact, Issei was standing a few feet away. Pounding his fists onto the ground before slamming them together, both hits produced small explosions.
Wobbly getting up, Kokabiel saw the brunette and immediately summoned two spears of light. Issei only grinned at the challenge, suddenly swinging his right arm around in circles. Eventually, the boy managed to generate a wheel made of fire before rearing his arm back and launching himself forward with the flames.
Using both spears to block the attack, Kokabiel and Issei were at a stalemate at first. But then the green gems on the gauntlets that Issei wore started to glow ever brighter than before. With a roar, Issei managed to beat Kokabiel in strength, causing the Fallen to constantly spin around in the air like a wheel.
Kokabiel screamed in frustration, stopping himself and flying away. Raising both hands, the Fallen began to use up all the strength he had remaining. All that effort created a spear of light that was ten times his size and nearly three times his width.
[Oh boy, that looks big.] Futaba commented before she started typing something in front of her. A dragon-head icon then appeared inside of a triangle with each line of the shape being red, purple, then green. [Here come the buffs, I-cchi!] She exclaimed while slamming her fist onto the picture.
Smirking at information, Issei stomped onto the ground when multiple lights flowed over him while raising his fists in anticipation. "Promotion! Rook!"
Just as Kokabiel threw the massive spear towards the boy. Just at the weapon flew, Issei's fist made impact with the tip. But it was not enough to deflect or destroy the light. Following through the motion, the boy just managed to knock the spear back a couple of feet. The weapon still remained intact and continued to fly right towards him. So Issei kept on swinging fist after fist, furiously advancing towards the Fallen Angel at the same time.
With a final punch, Issei destroyed the spear; blinding Kokabiel in the process. Rushing towards the Fallen in a crouch, the brunette hopped up and threw an uppercut right against his enemy's chin. Landing on the ground after a spin, Issei then skipped and punched Kokabiel's jaw again. Spinning around and landing down for a second time, the brunette then jumped up and nailed the chin a third time.
Grabbing the Fallen's face while in the air, Issei slammed that part of the body to the ground before stomping on it.
After that, the area around them fell silent. Kokabiel didn't move.
Panting, Issei looked over towards everyone who was watching him. "Hah… So…" He tried catching his breath, hands on his knees. "He done now? Or are we still going?"
"...Yeah, he's pretty much beaten." Futaba finally nodded her head just as she slid out from the bottom of Necronomicon. "We did deal some serious blows to him."
"Especially to his pride." Koneko commented.
Looking at one another, more silence occurred. But it was easily broken in seconds when many of them began to cheer loudly. Some had contributed to the noise however, choosing to clap rather than be vocal. When everyone settled down onto the ground, then walked around while congratulating one another.
Issei however, fell right off his feet and onto all fours before rolling onto his back. He looked completely exhausted. "Ugh… my arms hurt all of a sudden…" He groaned, his clothing suddenly flashing red before they disappeared to reveal his original attire with only a single gauntlet on his right hand. "What's going on?" Eventually, his arms gave out and he fell flat onto his face. To make himself more comfortable, he rolled onto this back.
"So, looks like he's finally feeling the backlash of unlocking his Persona for the first time." Morgana noted, skipping over to observe the boy panting. "No need to worry about it, we all went through it… Well, now that I think about it, I think only Lady Ann and Yusuke went through what you're experiencing now." He shrugged while patting Issei's side. "Well, no matter. Just give it a couple of hours and you should be good to go."
In the middle of the conversation, Kokabiel's hand twitched.
A few among the group noticed this. Before they could properly comprehend the action, Kokabiel lunged straight for Haru with a tiny weapon made of light in his hands.
Before he could even reach her though, something immediately fell from the sky down onto the Fallen and right in front of Haru.
A single figure in white-armor that covered their entire body was the one responsible for the action. The head only looked down towards the one who was under their foot. "How the mighty have fallen, Kokabiel." The person spoke, not amused at the body he looked at. "You say how you are your Fallen are the strongest, yet here you and your followers were beaten by a small group of Devils and humans. It's almost humorous. I suppose it is also no surprise that you couldn't best the Phantom Thieves."
"What the- who are you?!" Ryuji exclaimed, drawing his firearm just in case things got messy. Everyone else meanwhile also readied a form of attack just in case the person was hostile.
The two exorcists however instead were extremely surprised at the reveal. "The… Phantom Thieves?" Xenovia questioned, looking over towards the rest of the humans. "That's the group that would steal hearts and force people to confess their sins!"
"…Uhh… yeah…" Futaba awkwardly drawled out, looking over. "Do us a solid, and do not tell anybody about us, okay? There's a reason we try to keep this a secret. The last thing we need is the Church banging on our doors, and Jehova witnesses are already more than enough for my taste for your religion."
The two exorcists seemed to be exasperated at Futaba's reply, but they chose not to say anything.
Haru however kept staring at the armored figure in surprise and shock. "That voice…" After a few seconds, she then blinked. "Ah, is that you Vali-kun?" The girl asked pleasantly suddenly with a smile.
The helmeted head slowly moved its head up to eye the female. "You are correct, Haru Okumura." He nodded slowly. "Azazel finally came back from what he was originally doing. He asked that I track Kokabiel down and bring him back using any necessary force. But it appears that minimum effort will be used thanks to you and your companions."
The heiress only chuckled. "I guess you found us by the sounds and images of fighting going on here."
"Yes, I did follow the noise and lights." Vali confirmed.
"…Oh, it's just Vali-san." Akira stated, standing back up straight and holstering his gun. "It's fine. Everyone put your weapons down."
While all of them Phantom Thieves did what they were told, the Devils and exorcists meanwhile did not relax at all. "Akira-san, you know who that is?" Sona asked slowly, making sure that her words were getting to Akira's brain.
"Yeah, pretty much." The addressed male nodded his head. "He's associated with Azazel-san." Not responding to the looks Sona and Rias both gave him, he proceeded over towards Vali who was just beginning to grab Kokabiel by the collar of the clothing the Fallen wore. "What exactly is going to happen to him anyways?" His head tilted towards the body in curiosity.
Vali, behind his helmet, only eyed Haru for a moment before bringing his full attention to Akira. "I imagine Azazel will seal him away. In a suitable prison. Cocytus, I assume."
Well, at least this meant that they weren't going to flat out kill the Fallen Angel. "Cocytus? I have no idea what that place is." He frowned a bit before regaining his usual look. "But, if Azazel-san says that it's a suitable prison, then so be it." Akira then held up his hand to gesture at the body. "He's all yours."
The person covered in armor nodded their head. He didn't leave though. Instead, Vali turned and faced Issei who was still on the ground. "So, you're the one who holds the Red Dragon Emperor."
Grunting, Issei did his best to stand. He had to end up using Asia to support him, but the brunette was still on his own two feet. "Yeah I am. What about it?" He asked, taking in a deep breath to regain some air from his short pants.
"So, we meet at last." Vali did not release his grip on Kokabiel. "Allow me to introduce myself to those not familiar with me. I am the opposite of your dragon who dwells within the Boosted Gear… I am the one who bears Divine Dividing."
That reveal made several of the Devils and even both of the exorcists flinch. "Divine Dividing… Are you telling me that you're the White Dragon Emperor?!" Rias questioned in shock.
"The White Dragon Emperor?" Ann questioned. "Wait, hold on! Can someone at least explain to us who are not that well-informed of all the supernatural stuff what this is about?!"
"Let's save it for later, when you're ll not in a public place dressed as Phantom Thieves." Sona stated, deciding it would be best to explain things when everything was quiet. "But to make things easy, Issei's Sacred Gear contains the Red Dragon Emperor, the rival to the White Dragon Emperor. Even through the years of their existence, their wielders still fight each other to see who is the strongest between the two dragons." She even sweated a bit nervously. "The two of them battling anywhere will be completely catastrophic."
"I bear his power and can wield it to great effect, Gremory and Sitri. But you do not need to worry. I am out on an errand. That is all." Vali answered before facing Issei. "Although it seems that you are unable to use your power properly."
"What was that?" Issei gritted out, glaring at the white-armored person. "I don't see you knocking down Kokabiel at the very beginning! Just you wait until I catch my breath and use my Persona again! Then I'll show you using my power properly!"
"…" Vali tilted his head curiously. "A Persona you say? Like the Phantom Thieves?" The brunette did not answer, but the white-armored male still got what he was waiting for. "How enlightening. Maybe you will prove to be a lot more interesting than I expected." Turning around, he began to walk away. "It's time for me to take my leave. I expect our next meeting to come shortly."
"Bye, Vali-kun!" Haru waved. "See you soon then!"
Stopping, the figure slowly turned their head. Eyeing the heiress, the man eventually nodded his head back in a gesture of politeness. "Farewell."
Vali flew into the air, became a blue streak, and was out of sight in seconds.
"Wow… just… wow." Ryuji whistled, impressed at the speed they had watched. An awkward silence then passed between all of them. "…So… what now?" He asked, looking at everyone while shrugging.
"It's late." Ravel responded, folding her arms. "I at least suggest we all just go back to our homes and sleep it off. We do still have school tomorrow."
"Wait, seriously?!" The boy with the skull-faced mask quickly pulled out his phone and looked at the date. "Damn it, you're right!" He groaned. "Why does it feel like tomorrow is a weekend though?!"
"Well, the human body supposedly needs around 1.5 to 1.8 hours of deep sleep per night minimum." Futaba supplied. "So, we're still in the clear. Though I think I-cchi is going to need as much rest as he needs since it looks like he overdid it."
The mentioned brunette wobbled, but still managed to stand on his own. "Oh yeah… that reminds me…" He breathed before looking over to Akira. "So, how was I?" Issei asked with a bit of a joking grin and chuckle. "Think I made the cut to be a Phantom Thief like you guys?"
Akira blinked before putting a hand to his chin. "Hmm… with a bit more training you it may work. Plus, we could always use a demolition expert."
"You are not using Issei-san as a demo man." Sona deadpanned. "The last thing I need are unnecessary explosions around Kuoh without proper supervision."
While the Phantom Thieves and Devils interacted with one another, none of them noticed the two exorcists just standing a fair distance away and staring.
After 5 days of work and 2 days of volunteering a week, I finally caught a break. Now, it's 5 days of school a week... So not much of a change really.
Lo and behold, a new chapter... with a fight against someone who should be powerful but seemed to be underwhelming. In my defence, Kokabiel ambushed and scattered them all over the place at first. With everyone back together, in synch, and giving Issei a Persona, Kokabiel stood no chance against them in my opinion.
Okay... maybe I should end up at least describing what Issei can do with his Persona. I'll give you guys the abridged version.
Issei with his Persona Ddraig will have his power being above average (eg. stats as if he were a video game character). He will mainly focus on physical, gun, and fire damage (dynamite and other explosives). Due to his Sacred Gear, his physical and magical power will double every 15 (rather than 10) seconds but will reduce his endurance/stamina in return equally. Just like his Sacred Gear, Issei can transfer that stored power to increase the strength of people or objects. Since he's a Pawn piece, he can affect his own strengths and weaknesses, depending on how he promotes himself. He is IMMUNE to FIRE, RESISTANT against DARK (Devil magic or something?), and WEAK to ICE and LIGHT.
No flames please.