Since Nine is still suffering from the effects of his body, The plan is to have everyone attack in waves to make sure the villain uses his Quirk all the time until he has reached his limit and hold out until reinforcements from the mainland arrive.

The next morning, after recovering from his illness, Nine, Slice, Pansa, Uranium, and Chimera arrive at the entrance to the island after Slice scouted them on the ruins of the ancient castle.

Pansa: (Here we go! This is sooo exciting!)

The villains make their way to Mount Shiroyama, determine to get Katsuma no matter what.

But meanwhile Pansa and Uranium have their own plan set in motion.

Uranium: (Remember what we have to do, Pansa.)

Pansa smirked.

Pansa: (You don't need to tell me twice.)

*Later*

Riku: Everyone! According to my analysis! The villains have arrived! Prepare for the assault!

Mikoto: Okay Riku-kun! Thanks for giving the signal.

Sylvia: We're Ready!

Class 1-C: Yeah!

Mikoto: Class 1-A! What about you guys?

Deku: We're also ready Miichan.

Bakugo: Tsk. Those villains got nothing on me. I'll beat them up!

With the villains approaching the ruins, the heroes begin their assault on the villains with a pre-emptive strike.

Riku: Commence Operation Assault On Villains...NOW!

Yuga and Chassy attacks first. Aoyama using his signature move, Can't Stop Twinkling: Supernova and Chassy used her Star Rain: Nebula Blast to fire a massive lasers bombardment at the villains.

While Nine blocks the attack with his Air Wall Quirk, Slice, Pansa, and Uranium and Chimera break away from the blast, unaware that they are falling right into their trap.

Souta: Go Yaoyorozu!

Momo: Okay!

Momo nodded as she reveals two massive cannons she created last night with the last sources of her Creation Quirk and shot at the villains, which cause Slice to collapse in an underground cavern.

Pansa: *Falling* Whoa!!!

Uranium: *Falling* .....

Pansa and Uranium blasted towards the mountains and Chimera plunging into a nearby waterfall.

Souta: I'm going after Pansa!

Jack: Don't you dare leave me out of this! Plus! We need to find out who that other guy is!

Eito: We'll come too! (It could be another original Class 1-C member!)

Kieran: I'm taking down that villain with that hair!

Mio: Me too! She needs a haircut!

Oka: Snip Snip~! The wires are ready... here we go! X3

Haru: Here we go! Let's go after Chimera!

Maria: Let me show them what happens when they mess with the beloved animals, nya!

While Samuel, Kenji, Destiny will help guard Katsuma and Mahoro. Hein, Lilac, Chassy, and Akira will look after the residents who are still on Nabu Island.

Souta, Jack, Luna, Eito, and Yin went after Pansa and Uranium.

Kieran, Mio, and Oka went after Slice with Mina and Tokoyami.

Haru, Maria, and some of the members of Class 1-A charged after Chimera.

Riku: The villains have been separated! Everyone! Be careful!

Haru: Okay Riku-kun!

Souta: Got it!

Eito: Let's throw some hands!

Zoe: Good luck Luna-chan.

Luna: Thanks! You as well!

Kelly: Nine isn't going anywhere near Katsuma as long as we're around.

Kenji: Eito...only I'm the one who can kill you.

Eito: Is that a love confession underneath-?!

Kenji: Just don't die.

With that, everyone had taken off into their respective groups after the villains.

Sero, Kelly, Zoe, and Uraraka continue to commence their assault on Nine.

Kelly had used his Quirk and blasted a wave of steel wires everywhere. Sero uses his Tape Quirk to throw huge boulders at Nine supported by Ochaco's Quirk.

Nine deflects all of their attacks using his Air Wall Quirk for defense and his Bullet Laser Quirk for an offense. Ochaco continues to use her Quirk to make more floating boulders for Sero to throw at Nine. Kelly once again used his wires to surround the villain and using them to support the boulders while throwing them at Nine.

But the villain is still not stopping, so Hanta, Kelly, Zoe, Minoru, and Uraraka retreat to a trap they prepared and caused a massive rock slide with Minoru using his Pop Up Quirk to make the rocks stick together even harder to bury the villain.

However, Nine is able to break free easily, knocking Minoru out of the battle.

Chassy: Mineta?! Why you-?!

*BAM*

Momo, Chassy, and Yuga tried to intervene and engage Nine, but the villain quickly defeats all three of them.

Zoe: (Yaomomo...Chassy-chan...Aoyama...)

Nine: Be Quiet.

Zoe: *Rage* How dare you...attack my friends! I won't...let you go any further!!!

Zoe powers up all the plants from the ground only to get swallow up by Hydra and sent flying away with the others.

Zoe: AAAAAAAAAAAAAAAAAH!!!

Sylvia: Zoe! Dammit! Come here and fight us, you fucking villain!

Nine: With Pleasure...

Izuku, Mikoto, Sylvia, and Bakugo intercept the villain, but they aren't enough to take down the villain as Nine uses his Air Wall and Bullet Laser Quirks to defend and attack at the same time.

Kelly: Yukimura! Akuma!

Sero attempts to help out, but he is defeated after Nine uses his Bullet Laser Quirk to blast him. Uraraka tries to make Nine floats but she gets knocked out by his Hydra Quirk.

Uraraka: GAAAAH!!!

Sylvia: Uraraka-chan!

Kelly's wires get blown away by Nine's weather manipulation as the deadly thunder struck him.

Kelly: *Paralyzed* WAAAAAAAH!!!!

With that, Nine gets rid of Sero, Uraraka, Kelly, and the others with his Quirk easily.

Mikoto: Kelly!!!

Sylvia: Mikoto! Don't lose focus! Let's help out Midoriya and Bakugo!

Mikoto: Alright!

Izuku and Katsuki fire back against the Hydra Quirk with a combination of Delaware Air Force and AP Shot, but the Quirk is too much and takes down them both.

Backing them up, Mikoto and Sylvia send a fury of snow and fire attacks at the villain but he dodges every last one and hits them with the Hydra Quirk as well, injuring them once more.

As the villain's about to defeat Izuku and Katsuki, Nine has reached his limit and starts to reel in pain from his illness.

Mikoto: He's weak again!

Sylvia: TAKE HIM DOWN!!! HELL YEAH!!!

Mikoto, Izuku, Sylvia, and Bakugo seize the opportunity, but Nine activates his life-support to take a heavy dose of empowering drug and goes beyond his limit, summoning a massive lightning strike that seemingly vaporized the four young heroes.

Sylvia: WHAT?!

Mikoto: Ow....(How...?)

Nine stares loomingly down at them in a emotionless manner.

Nine: Tut. How Pathetic...Is that really the best you all can do???