Amity Colosseum (3rd Person Pov)
Yang: Well would you look at that, it seems Mercury gets to fight Y/n after all
Weiss: Though how would he fare against him?
Blake: Most likely lose
Ruby: Make sure to beat his ass Killua!
Killua smirked at Ruby's comment as they looked at Mercury and Emerald
Emerald: Seems you've got support
Killua: You could say that
Mercury: So Y/n I heard your suffering right now
Y/n: *Narrows his eyes* How do you know that?
Mercury: A little birdie told me, so think you can still take me on now?
Y/n clenches his fist as he grits his teeth together
Akeno: Oh my Y/n looks like he's about to kill~
Artoria: What are they possibly saying to him?
The stages rise to show a forest, a beach and grassy land
Port (Intercom): The battle may begin... now!
Mercury and Emerald split up as Killua chases after Emerald and Y/n chases Mercury. Mercury went into the grassy land and hid as Y/n summoned his portals and cut down all the grass, Mercury then appeared behind him as he ducked to avoid his kick, Y/n then uppercut his back making him fly up into the air as he summoned a portal and fired a sword which hit his stomach making him crash into the ground.
Mercury gets up and starts breaking dancing as he shoots air currents out of his foot towards Y/n who manages to avoid them all, Y/n then narrowed his eyes and summoned a portal next to him then bringing out a mid tier sword as he used it to block Mercury's incoming kick.
Y/n then jumped back and went to slash Mercury as he ducked underneath the sword and punched Y/n's gut making him fly off and into a few trees.
Rias: Hey Artoria how sick is Y/n?
Artoria: He has to stay away from his Ki moves
Rias: For real? I don't get how one can be this sick
Kazane: I've never heard of someone forcing their way into the future though, if it's a technique then I'd understand but Ikaros said he forced his way into it
Akeno: Wait forced?
18: Yeah Hit's ability was to skip time and surprise his opponents so Y/n decided to counter that by predicting his movements but when Hit improved so much that predicting wouldn't work then he resorted to the Kaioken which made him so powerful in that moment that he was forcing his way into the future to counter Hit
Xenovia: Could that explain why we were all covered by his red aura, I mean like why it expanded so far it covered all of Vale?
Artoria: It's a possibility
Emerald was struggling to keep up with Killua who was throwing a lot of punches towards her. Emerald bought out her whips as Killua bought out his yo-yo's and threw one at Emerald as she ducked and watched it destroy the tree behind her
Emerald: (What kind of power does that yo-yo of his have?!)
Killua spins then throws his yo-yo which Emerald dodges by rolling out of the way allowing it to smash into the ground which brings the ground to float up, Emerald takes this as her time to hide as she starts using her semblance on Killua.
Killua looks around frantically for Emerald when he sees Y/n walking up to him
Y/n: Yo Killua!
Killua: Y/n? You defeated Mercury?
Y/n: Yeah it was easier than I expected if I'm honest
Killua: (I didn't hear the announcement though) I get it your semblance is illusions
Y/n stopped and smirked as he disappeared, Killua then narrowly dodged a strike from Emerald as he skipped and kicked her in the stomach
Emerald: (He knew I was coming?!)
Emerald lands as she stares at the smirking Killua
Killua: You didn't even make me try
Killua picks her up by her hair then kicks her in the stomach as she flies out of the arena
Oobleck (Intercom): Oh and it seems Emerald is out by ring out!
Kiba: Killua sure is tough
Issei: Yeah no joke he seems to be as good as Y/n with all his strength
Koneko: He's fast... a bit too fast
Ruby: Yess go Killua!!!
Blake: Well she's certainly worked up
Yang: And this ladies and gentleman is what happens when you have a boyfriend
Weiss: Aren't you dating Y/n too?
Yang: Oh shut up
Y/n and Mercury were still battling each other as Y/n was quickly getting tired
Mercury: *Smirks* It seems your reaching your limit
Mercury dashed at Y/n who got rid of his sword and caught his fist, Y/n then spun and tried to kick him as Mercury ducked undeneath then kicked his chest making him stumble back a bit
Mercury: What's wrong Y/n, thought you were Beacon's most prized student oh what happened to me having to watch and learn what a real fight is? What a weakling.
Y/n starts breathing heavily making Mercury grin with satisfaction
Akeno: Oh my it seems the strain on his body is increasing, are you sure you don't want us to help him Artoria?
Artoria looks away with her eyes closed
Y/n: He's so...ANNOYING!
Killua comes out of the clearing to see Y/n's aura flaring as it starts to turn golden before it disappears
Y/n: I'm going to make you pay
Y/n's body starts to buff up as his hair stands up and turns golden however his red bangs remain before he releases his aura showing his super saiyan form
Artoria: Is he a fool!?
Akeno: Well to be fair Artoria there is a way to heal him that you don't want to do
Y/n looked at Mercury who looked scared for his life
Mercury: (I thought he wasn't able to transform!)
Cinder from the stands also had a shocked look as well everyone who knew what was wrong with him
Y/n: You know if I was at full strength my super saiyan form would be overkill for you but since I'm currently having some... major drawbacks I guess I'll have to take this risk
Killua who came out of the forest had a dumbfounded look on his face
Killua: The girls are going to kill him
Y/n disappears and appears in front of Mercury with his fist infused with ki then punches him round the face
Mercury goes crashing through a few trees as Y/n holds his arm in pain
Asia: Oh no his arm
Irina: To think he's straining himself this far just to win
Xenovia: It's almost like he has nothing but pure hate for this guy
Y/n holds his other arm up as a orb of ki appears in it, he then brings it to his side
Y/n: Kaa.. meee... haaa... meee... HAAAA!!!!
Issei: A one handed kamehameha?
Rias: He broke his arm Issei
Issei: What!? How?!
Artoria: That fool has resorted to his usual fighting style which is go in with fists reeled back and punch anything you find
18: There's more to martial arts than that
Artoria: Shut up
Akeno: To be fair Artoria he is suffering because of you hiding what could potentially save not only him but the whole world
Artoria: Shut up
Kazane: She's partially right, since the attack on Vale all crime has stopped completely there's no doubt they're planning something
They look back to see Mercury hit the top of the barrier as Y/n's kamehameha starts to shatter the barrier a bit as it cackles everywhere giving the crowd some fireworks as they looked on at the outstanding attack.
Y/n stops the wave as Mercury drops to the ground knocked out
Port (Intercom): And Mercury's aura has completely dropped meaning Y/n and Killua win the battle allowing them to go onto the singles round!
The crowd roars with cheers as Y/n falls to his knees panting and Killua walks up to him with a very cheeky smile
Killua: You know all I gotta say is those girls are going to kill you
Y/n: Please... hide me
Killua laughs and picks up Y/n wrapping his arm around his shoulder
Killua: Come on tough guy
The stage disappears as Cinder gets up with a frown on her face
Cinder: (The entire team is full of strong warriors... it seems we have even bigger problems on our hand)
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So what happens now, does the girls do something about Y/n's condition or do we continue with our delayed onset energy disorder? Find out next time!