Chapter Four: Battle of Demons

"Round two, mother #$er!" the being shouted, his eyes flashing a dangerous yellow.

"Hey, that's my job!" Sans said. (I couldn't resist this one)

"Sans!" Toriel shouted, blushing a little as Mettaton snorted back a laugh. "That's private information!"

"Damn right it is!" Sans said, smiling a bit wider. Mettaton was laughing at this point, while the demonic being looked at Sans with a look that said 'dude, seriously? Now?'.

"So" Gaster said, bringing everyone back to the issue at hand. "Asriel Dreemurr. I didn't expect you two to become this being again."

"Asriel?" Toriel gasped. "That demonic being is my son?!" (A/N: Toriel didn't know about Asriel's other form—he turned to dust before she saw him—Asgore knew, but didn't say anything)

"Yeah, Tori." Sans said. "He fused with Chara's soul the night he died."

"Really?" Toriel said, thinking. "Why didn't Asgore tell me?"

"Maybe he didn't want you to worry." Sans said, shrugging.

"You're not using your full power." Gaster said, observing Asriel.

"I wasn't using my full power in my human forme either." Asriel said. "I held back a lot."

"Why?" Gaster asked.

"if I use too much LV at once" Asriel said. "I lose my sanity and become a demon." (A/N: LV (and by extension EXP) works like DBZ power levels—you can control how much you use at once—Chara still has a LOT of LV from her genocide runs, but she doesn't use much of it because she doesn't want to become a demon—the less LV you use at once, the less powerful you are, but the more sane you are—LV isn't necessarily a bad thing, since it applies to monsters as well, Sans, Asgore, Toriel and Undyne being beings with higher LV than most monsters, but too much isn't good)

"Well" Gaster said, summoning ten Gaster Blasters. "You'd better use quite a lot of that LV if you wish to beat me."

"You know Gaster." Asriel said, speaking as Chara. "I HATE humanity. With a burning passion. Even before I fell into the Underground, I saw the worst of what humanity had to offer and it still is with me to this day."

"What does this have to do with this fight?" Gaster asked.

"I literally slaughtered over a million monsters just to become powerful enough to obliterate the humans." Asriel continued, ignoring Gaster. "I even killed humans that fell into the Underground and covertly gave them to Asgore. Though, they were a lot worse off than I was, so I guess it wasn't just hate. Those evil humans slaughtered monsters at their most vulnerable."

"I'm not following you." Gaster said, everyone else confused as well.

"But" Asriel continued. "I met one human. One human different than all the others, one kinder and nicer to all the monsters. I truly saw compassion and goodness in her eyes."

"That human" Asriel said, pointing at Frisk. "Was her. She is the reason I don't slaughter all the humans right here and now. And I promise you that if she dies, no god in heaven or demon in hell will find your soul when I'm done with you!"

"If that's your plan." Gaster said, firing his Gaster Blasters at Asriel, who summoned a shield to block them.

"My turn." Asriel said, now speaking as both. He summoned a strange object that resembled a Gaster Blaster, but was totally different.

"You know a Gaster Blaster won't work on me." Gaster said, his expression serious.

"Oh, this isn't a Gaster Blaster. Asriel said, grinning. "Say hello to my Chaos Buster."

He fired the blaster, the beam striking Gaster and hurting him. Toriel, Sans, and Undyne summoned magic to create a shield around the two combatants so they couldn't destroy the house.

Asriel gave an angry yell and summoned fire to his fists, lunging forward towards Gaster and punching him in the face. Gaster flew backwards into the shield, Asriel lunging forward and assaulting the former head scientist with a barrage of flaming punches followed with one of his more powerful attacks, Chaos Blaster, the upgraded version of Chaos Buster. The powerful beam created a hole in Gaster, causing him serious harm.

Gaster and Asriel began shooting powerful beams of Gaster Blasters and Chaos Blasters respectively. The whole house began to shake under the force of the blasts, the magic shield being unable to handle the pressure given off by the two powerful, demonic entities battle.

"Give up, Asriel." Gaster said. "I'm not fighting at my full potential. I won't give you another chance to surrender and die peacefully."

"Shove it up your ass!" Asriel shouted, firing a barrage of fireballs, Gaster blocking some, but some hitting him.

"Your choice." Gaster said. "For your mother's sake I'd have killed you painlessly, but I won't let you get away."

"I'm not running." Asriel said, grinning slightly. "Take your best shot."

Gaster unleashed the full power of his LV, the room getting full of pressure.

"Pops?" Sans asked quietly. "How'd you get this much? What'd you do to get it?"

"Now, Asriel." Gaster said, bones and Gaster Blasters surrounding them. "Die."

The bones and Gaster Blasters all attacked Asriel, but the demonic entity summoned a wave of power to dispel them. He then unleashed a good deal of his LV, black fire coming to his hands.

Asriel then moved behind Gaster with incredible speed, punching the scientist in the back of the head. Gaster and Asriel began trading blows, punches landing on both of them.

Toriel and the others that were conscious watched with amazement, the power coming off of these two beings immense.

"How are the two of them that powerful?!" Undyne exclaimed. "Chara was never this powerful."

"Yeah, she was." Sans said, his tone grim. "In fact, this isn't even the limits of Chara's power as a human."

"She could have beaten Gaster at the beginning of the fight?" Undyne asked.

"Yeah." Sans said. "But, using a lot of LV at once causes a person to become more and more evil. Chara didn't want to lose her sanity, so she doesn't use much of it."

"I see." Toriel said. "Well, that's another point that Chara's not evil anymore."

"Yeah." Undyne said. "But, how is she that powerful?"

"Killing over a million monsters" Sans said grimly. "Can give one a very high LV."

"Well" Toriel said. "Let's hope they can beat Gaster without using that much LV."

"Well" Sans said. "There's two of 'em, so it would take more LV to make them like that."

"Wait." Undyne said, confused. "What's the difference between DETERMINATION and LV?"

"DETERMINATION is used to have the power to resist death and manipulate time." Sans explained. "While LV is simply power in and of itself."

"You sure know a lot about this stuff." Undyne said.

"Alphys taught me a few things." Sans said.

"I hope you're right." Toriel said, worried for her two oldest children.

With Asriel and Gaster

"This is for Frisk!" Asriel shouted, summoning a huge ball of black fire. He slammed it down on Gaster, smashing the ghostly skeleton into the ground. Asriel then fired the ball of fire Kamehameha style, yelling out of rage. A large hole was created in the ground, Gaster at the bottom of it.

"I'll give you one chance to leave." Asriel said with a growl, turning his back on Gaster. "Only because it's what Frisk would do. If you refuse, I'll drag you straight to hell."

Asriel then defused, becoming Chara and Flowey once again. Some of Chara's wounds had healed due to her fusing and having as much power as Asriel did, but she'd still need to recover from them.

"Chara!" Toriel shouted, running over and hugging her child, shedding tears. "You're alright."

"Of course I am." Chara said. "I'm a badass."

Suddenly, behind Chara, a large Gaster Blaster appeared. Toriel saw it and gasped, knowing who had sent it. Gaster rose from the pit, determination (not the powerful kind) in his eyes.

Chara turned around, her expression one of pure rage as her eye glowed red. She summoned a large Gaster Blaster, deflecting the other Gaster Blaster.

"You should have taken your chance, Gaster!" Chara shouted, firing a large Gaster Blaster at Gaster. The ghostly skeleton was too weak to deflect it as it pierced his body, causing him great pain.

"Burn in hell!" Chara shouted, summoning ten large Gaster Blasters that all fired on Gaster simultaneously. Gaster screamed in pain as his body slowly dissipated, leaving a pile of dust. Chara then summoned five more Gaster Blasters at the dust, leaving none of it behind.

"A little over excessive there, kiddo." Sans said, looking at where the dust used to be.

"Well" Chara said, shrugging as she returned to normal. "Can't let Papyrus know I just killed his father, now can we?"

"No." Sans said, realizing Chara's logic. "We can't."

"We need to get this cleaned up." Toriel said. "Before anyone asks us about it."

Suddenly, there was a knock at the door. Chara walked over to open the door when Sans stopped her.

"You need to dress your wounds." He said. "You're still bleeding."

"Oh, right." Chara said, running upstairs to grab some gauze, taking Frisk with her.

Toriel opened the door to see two police officers, both of them tall men.

"Good evening officers." Toriel said politely. "How can I help you?"

"We got a call about a disturbance coming from this house." One of the officers said. "We're just checking up on it."

"Oh, everything's fine here, officers." Toriel said, trying to stand where they wouldn't see the huge crater in the floor.

"Ok, ma'am." The officer said. "But, I'm required to ask if there are any humans residing here."

"Oh, there are two." Toriel said. "But, they're busy right now, so they won't be here until later."

"We've heard reports of a human that has violent tendencies living here." The officer said. "Is that true?"

"If you're referring to Chara" Toriel said. "She's a little rough, but she has a good heart. Actually, most of the fights she starts are in defense of my other daughter, Frisk."

"Daughter?" the officer asked. "Is she human as well?"

"Yes." Toriel said, nodding. "But, she's a very nice girl, so sweet and kind."

"So" the officer said. "Can you tell us what you might know of this disturbance?"

"Oh, the loud noises and light explosions" Toriel said. "That was a little battle that started between Chara and another resident of the house, Undyne. The two of them are born fighters and often engage in combat as a sort of training. To become stronger you know. Just between you and me though, I think they watch way too much anime. All that Dragon Ball Z and Fairy Tail and stuff."

"Hey!" Undyne's voice rang out. "Those are awesome shows!"

"That's Undyne." Toriel said.

"Well" the officer said, her and his partner turning around and leaving. "I think we're done here. Please try not to cause such a loud disturbance in the future."

"Will do, officers." Toriel said, waving. She closed the door and breathed a very heavy sigh.

"I've never told such a bold-faced lie in my life." She said. "Hopefully, they won't come back."

"We should check up on our human charges." Sans said. The other conscious monsters nodded, walking up to check on Frisk and Chara (mostly Frisk, who was still unconscious).

They entered the room Frisk slept in with Papyrus. Inside Chara was leaning over Frisk, tears falling from her face, Flowey next to her, trying his best to keep her from sobbing, but, due to his lack of many genuine emotions, was failing a good deal.

"She won't wake up." Chara said without even looking up at the others. "I can't wake her up."


Why isn't Frisk waking up? Can Chara figure out a way to save her little sister? find out next chapter.