Characters so far will be fighting against the Reader, but he won't be alone. He'll finally have help featuring characters from a second book I'm writing titled Lone Swordsman.

Y/N: I should've figured this would happen eventually.  No matter what universe I went to, you would've found me. Unfortunate you would've found me in my home universe though.

A crowd of girls is standing ahead of you, recognizable to almost anyone. It the front is Link and Team RWBY, but others are behind them. Yumeko, Rin, Neo, the list goes on. Luckily you were at your school, and would have some support that they didn't know about.

Weiss: Come on back, Y/N. We agreed to share you among all of us, and you know you aren't strong enough to beat us. Especially with an eye patch hindering your vision.

You smile and cross your arms. They don't know, and that's one small mercy.

Y/N: Ark, Storm, Hannah, Misty, I need help!

In an instant, a blind girl appears next to you with her staff. Following closely behind her is a red-head with a sword, a blonde girl with a massive hammer, and a purple haired girl who's as smug as you are.

Y/N: You're in my universe, so you have to deal with my friends, and my true powers too. Everyone here has a power of our own, and we won't hesitate to use them. BloodLust Maker, Scythe!"

A black scythe appears in your hand and you brace it on your shoulder, smiling as you rip off your eye patch to reveal a purple eye. Misty summons a sword beside you.

Neo: Come on Y/N, you gave me my voice back, don't you want to talk to me?"

Link: And we have a wonderful kingdom we could rule together.

Rin: Don't be an idiot Y/N. Your servant couldn't do anything, what makes you think your ragtag group of morons can?

Hannah, the girl with the hammer, growls slightly.

Y/N: That's mean. But who's up first?

Ruby's the first to move, transforming her scythe to a high impact sniper rifle and firing at Misty. You swing the scythe and destroy the round.

Y/N: Too slow, anyone faster?

Weiss disappears and reappears in front of you, swinging quickly, and that starts the free for all, quickly making you lose sight of your allies. You duck and deflect a second swing before punching and swinging your scythe. She barely dodges it and thrusts forward, but you predict it and knee up while swinging the scythe down, breaking the blade. Before you can continue your attack, the rest of her team intervenes.

Yang: You definitely are strong. I really like that, Y/N.

You grimace and let your stage three of your power release. Stage two only works on one person after all.

Y/N: Dance of the Doomed! I'll rip your souls from your body!

The purple eye flashes as you walk closer, and they all drop their weapons, stuck in their position as a barren wasteland forms in their vision.

Y/N: You'll be trapped here for as long as I decide!

You swing your scythe, doing no damage to the bodies but cleaving the soul completely and trapping it within the weapon, defeating four opponents that fast. Neo tries to attack you from behind, but you slam the shaft up and send her flying. You look around quickly.

Yumeko died already to the sword of Ark, from the look of things. Chara and Frisk were both unconscious, probably from Storm's Staff. And Sasuka had been cut down by Misty. But you weren't without casualties. Hannah had been stabbed repeatedly and it looked like she'd died in heart pains. No doubt the work of Misa's Death Note and Touka's Kagune. You moved to the unconscious duo and severed the soul from their bodies. 

Y/N: Misty, get the other captains, we need them!

Misty: No can do! I'm stuck fighting!

You growled and slammed the scythe blade into the ground. 

Y/N: You killed Hannah, my friend! Now you will all pay with your souls, just like Chara, Frisk, and Team RWBY have!

They all looked fearful, but got ready to continue fighting.

This fight is far from over.