Yusuke P.O.V.
We were able to reach Sensui's hideout in time, and just as we'd arrived I saw Kuwabara sitting next to Makihara wrapped around in rope He was across the other side of the cave sitting in a boat filled with water surrounding their exit.
"Get me off this boat!" Kuwabara pleaded tied up with a handkerchief wrapped around his mouth.
I glanced behind Kuwabara to see demons in the black tunnel that was blocked. They couldn't come out and they must be waiting to use Kuwabara to break it open to unleash the demons into the human world. Until I noticed the demons were pushing hard against the shield as a small crack appeared making me gasp knowing that it could break sooner at this point.
'Those demons are just lining up for a shot at us. Not the kind of crowd you want to be stuck in a cave with.' I thought it was straightforward.
"In case you're feeling you've done this before, don't." Hiei spoke up, "The world ahead of you is nothing like Maze Castle. They have tapped into the true depths of Demon World." I glanced at him as he gave me a stoic expression. "Ordinary humans will shrivel up just by inhaling its rotten wind."
My eyes shifted over to Sensui who was sitting on a couch watching television ignoring that we were here even though he could sense our energy from afar.
"We're getting to the real grit of the film, Yusuke," Sensui said.
"Yippee." I sarcastically said.
"The finale in about half an hour." He said as I could hear guns shooting and explosions coming from the television. What was he watching? This isn't history class to learn about the wars people had faced for decades to die with honor and pass their stories to write in historical novels.
"The most repulsive part is they weren't even fighting for anything real." Sensui points out very logically, speculating about the war going on on the screen. "They were killing out of fear, of an idea that threatened their greed. It only gets crueler from here." Sensui stands up from the couch and faces directly at us with a cold facial expression. "And then the whole thing wraps up with a rather beautiful song."
"That's oddly inappropriate," I said in a low tone.
"I've always thought it symbolized hope, which is why I've timed the tunnel to open when the music begins." He implied.
Then it hit me when I realized that we've only got 30 minutes to fight and prevent him from opening the gate of the demon world to here.
"What's the problem?" Hiei asked Mitarai who was looking rather puzzled.
"It doesn't make any sense to me. How's Mr. Itsuki standing up?" Mitarai inquired.
"He does have legs." I joked.
"But every time I've seen him since I was first brought to the cave, he's been sitting in that boat, creating the tunnel," Mitarai explained about his point of view when he sees Itsuki that created the tunnel of demons, to begin with, to follow Sensui's plot.
"The portal is alive now. It's out of my control." Itsuki spoke up, "When the time is right, it will manifest on its own. Even if I wished to, I couldn't stop it."
My eyes widened when I saw the demons in the black tunnel were slightly breaking out at this point reaching their hands out towards Kuwabara.
"Kuwabara!" I shouted.
"Human flesh! Let me taste it!" One demon bull pleaded hungrily.
"NO! Let me have the human and the little demon girl too!" Another hungry demon begged.
"Get away from their hands!" I yelled.
"Don't think I'm trying?!" Kuwabara, muffled through the handkerchief leaning forward trying to get away from them, leaning against the rim of the boat.
"Those must be C-Class apparitions vying for their attention. Simple, characterless creatures, governed solely by their appetites." Sensui clarified.
"I don't wanna be eaten by C-Demons!" Kuwabara exclaimed.
With all the struggling while they were trying to get away from the C-Class Demons, they were caught by them as they squirm in their grasp that the demons were pulling towards them.
"Stop! Let him go!" I screamed at the top of my lungs.
No one wasn't moving.
No one wasn't saying a word.
No one wasn't trying to save them!
"When the judgment comes, you simple apparitions can eat whatever you like," Sensui said as he raised his hand to gather up the energy to form purple ki coming from him. "Until then, don't spoil dinner."
With a simple blast, he aimed towards the tunnel of demons to disperse them away from Kuwabara. I felt relief washed over me, but I knew it wasn't the end.
"Alright, Sensui, I think you should be the one letting our friends go," I demanded.
"C-Class apparitions are like seeds. Abundant and worthless. But one of every hundred grows into a B-Class, with brains and strength that can easily surpass a human's." Sensui predicted in his logical mind of his own.
He then faced back towards us inquiring, "Want to tell us first-hand, Hiei and Kurama?" No words came from both of the demons as they formed a frown at Sensui. "And then from the B-Class, a handful take the next big leap. Intellect close to omnipotence, bodies of huge size and power. Creatures fit for human legend...like the Titans of Greek Myth."
"I'm getting really tired of hearing you talk," I said annoyingly.
"They are the A-Class demons. They're probably watching us right now from the pits of Demon World, waiting for a chance to rise to glory."
"Spare me the pep rally! You're going to kill the people you're supposed to protect!"
"My job was to protect the universe as a whole, and that's exactly what I'm doing." He said contentedly. "I've been trying to enlighten you, Yusuke. Don't you remember the Doctor's words? Humanity is a disease."
"Can't you guys do the debate thing after you're done saving us!" Kuwabara was muffled.
"Killing humans can't be that horrific to you, Yusuke. You would've killed the Doctor if Genkai hadn't been there. And Kurama killed a human child."
"We had to." I sighed. "It was for the greater good."
As Sensui turned around to face us questioning, "And what if every human was bad?"
I gave him a straight answer, "I don't deal with what-ifs." His lips curved up into a smirk.
"Where is my sister?" Tanjiro demanded.
"She's safe...for now..." Sensui said.
Tanjiro glares at the man as he tries to step in, but Hiei rested a hand on his shoulder giving him a side-eye. He mustn't make a move just yet, or we'll lose her along with Kuwabara.
"I assume this is where your sister kept inside in?" Makihara holds up the box that is for Nezuko when Tanjiro carries her around when there is sunlight.
"Where did you get that box?" Tanjiro demanded.
Makihara smirks, "Sniper found it somewhere in that closet at Yusuke's apartment. He did a good job to swoop her inside allowing us to capture her and Kuwabara.
"Give her back to us, and Kuwabara too," I demanded.
"I'm afraid we can't do that Yusuke," I growled gritting my teeth.
"Mr. Makihara brings the box with you please," Sensui said.
He called the big guy over after picking up the box and held it in his long arms. Why did he want to bring her over here instead? I was relieved that he decided to bring her over knowing that sitting in the boat near the demon gate was crucial, but I still have to get Kuwabara back too.
"If you can kill Mr. Makihara right now, I'll give Kuwabara and Nezuko back to you, unharmed." Sensui declared.
"What?" I grumbled.
"Say yes! Say yes!" Kuwabara pleaded.
"It's your choice," Sensui said. "If you refuse the challenge, I'll deflect any other attack you make by using Kuwabara as a human shield."
"But what does this have to involve with my sister?" Tanjiro narrowed his eyes directly at Sensui.
"Just a simple test to see if I can reach for a demon doll-like herself to put on a show for us," Sensui replied in an audible tone.
"Leave her alone!" Tanjiro growled.
"If a demon that has the appetite for a human corpse. Wouldn't it be the same thing if they were still alive?" Makihara inquired.
Makihara then holds out his fingers to stretch them to poke through the box where Nezuko was in. A loud cry was heard as Nezuko winced in pain from the sharp fingers.
"Stop it!" I shouted.
"Let me add something else," Makihara said, as he slid his sleeve up to scratch his arm as blood began to spill out as droplets of it fell onto the box. "I know that she's got to be starving in there."
A low growl was heard inside of the box, Nezuko's veins were popping around her skull, her claw-like nails were scratching the box. Makihara wasn't done quite yet, but Sensui smirked wanting to see more painful cries coming from the girl.
Hiei was gritting his teeth and clutching his fist hearing the crack of his knuckles. He couldn't
"Makihara, maybe a little more will get her attention." Sensui
"Certainly," Makihara kneels to strike four more fingers into the box, and Nezuko lets out a painful cry as Mahikara pulls them back with blood dripping through his fingertips.
"You bastard..." I growled.
Tanjiro hated to see the sight of this man torturing his poor sister and he couldn't get in between it to cause more problems. As Makihara stretched a single finger out to unlock it, he took a step back wearing a large grin on his face.
'Nezuko...' Hiei couldn't help but watch the poor girl inside of the box getting herself killed the more that man would stab her with his sharp fingers.
The others could see Nezuko standing up from out of the box, she faced directly at Makihara growling with her eyes changed dangerously. Nezuko stands from the box, badly wounded, and turns to him, salivating through her muzzle.
"Come on, you know you want to," Makihara smirked holding his arm out for her to take a bite out of.
Nezuko was struggling as her veins were showing as the salvation was getting worse. This was difficult for her to overcome this test. Her friends were watching, and they couldn't do a thing to put an end, but watch to see what will happen. She desperately trying to prevent herself to eat human flesh from the psychic. Her hands clenched together her nails dug inside of her skin making her blood spill, and there was sweat forming around her forehead.
Tanjiro had enough that he refused to stand around to let it happen. Kurama knew that Tanjiro's situation as Nezuko has not lost her human emotions or harmed a human. The boy knew he could not interfere directly. When he began to run over only to be held back by Kurama, "Please, you can't interfere or who knows what Sensui will do." The demon fox pleaded for the boy not to take another step.
"She's my sister, and she needs my help!" Tanjiro shouted.
"I understand. But you cannot jump into this when your sister and Kuwabara's life depends on it." Kurama was trying to reason with him that Tanjiro gritted his teeth and faced back at his sister's desperation.
"Nezuko!" Tanjiro screamed.
As Nezuko kept her eyes on Makihara's blood, she felt a sudden memory coming back to her when her brother was trying to convince Giyu that she needed help and that he didn't know what happened in that current situation. Her eyes twitched at the sight of the emotional scene, then Nezuko remembers her family and controls her instincts.
"I've convinced her that all humans are her family."
"I told her to protect them."
Nezuko looks ahead to see her brother standing there in her view as she stares at them to control herself.
"Humans are to be protected and safe..." Nezuko paused her sentence as she saw Hiei appearing by her brother's side, including her other friends that she accepted as her family. "...But there are some good demons that need to understand trust..." She then looked at herself to see that the muzzle was off, her eyes were glossy and were calm.
"Never hurt them. I will never hurt them." She claimed.
As she came back into reality, her eyes kept a focus on Makihara as they waited to see what her next move will be. Then, she turned her head away that stunned Makihara, Sensui, and Itsuki.
"What's this?" Sensui pierced his lips into a straight line knitting his eyebrows in confusion.
"It appears that the girl turned her head in pure disgust. She didn't want any blood-not from a human." Itsuki explained.
"Now, do you see? You've got your answer, and she didn't want any of your stupid blood. Give her back along with Kuwabara!" I demanded.
Third Person P.O.V.
Makihara held Nezuko in his grip used his fingers to trap her body from slipping out.
"You still have to try to kill me. If you were listening to what Sensui wanted you all to do, then it should've been done." Makihara's lips curved up into a wide grin on his face. "Besides your friends won't be leaving here until you did what you were told."
As Nezuko growls, she was able to slip out of the long yarn fingers and used her claw-like nails were very sharp slashes Makihara's face with her claws causing him to let out a cry of pain and allowed Kurama the advantage to use his rose whip.
Nezuko was released from the grip that she made a run back to her friends where her brother was, and she glanced over to see how Hiei was relieved that she was safe.
With elder Toguru combined with Makihara, Kurama faces off against him to use his rose whip to fight him on his own. "Right." Yusuke scowled. "Your end of the world party's dwindling, Sensui, and I trust you don't wanna plant food." Yusuke's eyes narrowed into his blank black ones. "Give Kuwabara back to us as you promised."
He let out a small chuckle, "Ha. No need to get heated, Yusuke. I've kept my word. He's no longer in my possession."
"What?" They all glanced behind him to see Kuwabara wasn't in the boat.
"No..." Mitarai muttered.
"But I never saw him move," Kurama said.
I gritted my teeth, "You bastard."
"Look, there." Kurama pointed over to where Kuwabara was sitting still tied up giving us an annoyed look on his face.
"Kuwabara! What the hell are you doing over there?!" Yusuke asked while we ran over straight towards him.
When we made it over to them Kurama untied his mouth as Kuwabara spoke up, "Jeez, not being able to tell you guys how to fight, that's worse than death!"
"Stay focused. How did you get over here?" Kurama asked.
"I don't really know. One minute I was sittin' in the boat, the next thing I was all mixed around. Dizzy." He explained as he exhaled, "Soon as I got my wits together, I was here."
"Did you see something?" Tanjiro asked.
"Look, Kurama," Hiei said with his eyes slightly widened.
Their eyes widened when they saw a shadowy figure moving around near the wall and into the water. They guess that's what brought Kuwabara all the way over here in the first place.
"Okay, another thing on my "Weird" list just got checked off," Yusuke said kinda freaked out as he held Her tightly into my arms staring down at the ground that appears to be a mouth.
Just then, the mouth opens as they all fall inside as Hiei holds onto Nezuko to prevent her from falling out of his arms. Soon as they were swept up, the shadow figure moves over to the wall and spits out Yusuke fell on the ground.
Yusuke glanced up at her groaning while holding his head he noticed Itsuki sinking into the ground leaving the remaining three of us here. Sensui does a front flip towards him, Yusuke glared at the old detective.
"I dunno what you did with my friends, but I tell you now. For every one you hurt, I'm taking a limb." Yusuke said in a threatening tone.
"You're misunderstanding it. Your friends haven't been touched." Sensui says in a dry tone. "I'm not interested in their fates. I just don't want distractions."
Yusuke faces Sensui with a straight brave face, "So...then it's time."
In the other dimension, the others were alright as Nezuko opened her eyes to find herself floating around as she looked deadpanned in confusion.
"Nezuko." She heard her boyfriend calling her name as she turned her head facing his direction upside down.
"Mmm!" She squealed.
The fire demon was relieved that she wasn't injured, and he helped her face the right side up with Tanjiro's help. As the girl felt herself being pulled against the fire demon she felt her cheeks heat up that he glared over at Itsuki that was the one that trapped them inside of the shadow body.
"I'm not surprised that your protective of that thing," Itsuki said.
"That "thing" is my mate and I won't let this go to waste for letting you torture her." He snarled as the demon girl made little noises as Tanjiro faintly smiled at the demon. He knew that he was looking out for his sister and he is protecting her.
The battle between two-spirit detectives was going to be a one-on-one showdown in the cave. Yusuke was isolated away from their friends after Itsuki used his technique Dimensional Travel to get them separated and watch the fight using the Ura Otoko that allows it to be a veritable pocket-dimension unto itself. It was given as the debris seen within it, it can be inferred that this creature has existed for a long time.
"I can predict your moves," Sensui said grimacing at Yusuke who stood his ground ready to fight. "Decoding my opponent's style is my strength, but I've been doing it for decades longer."
"Then I guess you know this, too, that trusting what people tell me has never been my thing!" Yusuke charges up to Sensui to aim his fist against his chest and starts punching him nonstop. His punching skills were fluent and when he threw a big punch in Sensui's gut, the guy flew in the air knocking down a rock facing upside crashing into that, then at the wall. Sensui's shirt started to rip off as his body fell into the water creating a huge splash.
"Jeez," Yusuke asked.
"What's that Sensui? Did you forget how to swim? You drowned?" Yusuke teased. "Great, we'll pack up and go! You heard Kuwabara, he's starving."
Suddenly, little bubbles were appearing from the water, Yusuke narrowed his eyes to see Sensui arising back to the surface with a straight face.
"Good hits, detective. Between that and the water, my shirt practically dissolved." Said Sensui who casually walked back on the surface as Yusuke looked at his body that had so many scars all over him.
"Gross. Look at all those scars. I guess he wasn't lying about all of those scars he's been through." Kuwabara said they could hear him in the Ura Otoko shadowy figure that was watching them all not too far away where the two detectives were fighting.
Sensui says, "Don't you know what they say about assuming, Kuwabara?" Sensui narrowed his eyes directly into the shadowy eyes of the shadow figure. "These wounds aren't from enemies. No one's ever hurt me that bad. I gave myself these scars as part of my training."
Yusuke felt sweat dripping down his forehead down to his chin as he wiped it away. He had to agree with Sensui, that his body is well trained like punching a tractor tire. As the two-spirit detectives stood their ground sending a strong glare at each other. Time was running out and Yusuke couldn't help but worry about what was going to happen if 30 minutes were already up.
"Now, let's fight like there's a little more at a stake," Sensui said.
Sensui's power starts to rise, but he's much stronger than what Yusuke and the others expected This guy will not hesitate to kill them all one by one. Yusuke had to be alert and as Sensui drew out his powerful spiritual energy known as Fissure Kick Crimson Ball Wave to aim at the spirit detective dodging all of the balls like it was P.E. class. This brought back memories of Nezuko fighting in the dark tournament against Hayami-if only he could predict that same move.
"All right, enough of this already!" Yusuke charges straight towards the balls flying towards them and starts punching them. The others were amazed that Yusuke was keeping his guard up to attack Sensui's crimson balls coming straight for him. Tanjiro had his mouth gap open as she watched the spirit detective prevent every ball from hitting him.
"Surprise!" Yusuke jumped out of the smoke glaring over at Sensui who stood there not amused. "Maybe I can't defend against attacks from multiple angles, but sometimes good defense just kicks in the ass!" Hollard Yusuke who punched another one of the crimson balls that Itsuki was bewildered by how he managed to aim Sensui's attack.
"Bet you didn't see this comin'!" Yusuke exclaimed, jumping into the water and swam back to shore which made it look refreshing for him.
"You still think you know what I'm gonna do next?" Yusuke cockily grins laughing in amusement.
"Hey! Stop clowning! This is no time to be taking a dip!" Kuwabara exclaimed.
"He's never been one for good manners," Hiei stated.
Yusuke says, "And now I'm ready to go a few more rounds."
The match continues as Yusuke runs up to Sensui who gives him a mischievous grin," And now we return to your same old conventional punches. It's unfortunate, honestly, to see that your brief spontaneity was merely a passing reprieve."
"That's way too many big words, pal!" Yusuke yells.