Jack didn't even saw it coming.

Running towards their objective, Eijiro and Jack cannot help but feel worried for Tamaki who had fallen unconscious from the villain attack.

Kirishima: Tamaki-Senpai...

Jack: Oh crap...

Seeing their worried looks, Fat Gum encourages the young Heroes by saying that the mark of a true man is to have the ability to completely trust someone who has their back. Eijiro feels better while Jack and Midoriya are surprised that Eijiro changed his mind so easily. Sir Nighteye spots a staircase while Aizawa is concerned that Mimic.

Jack has learned the villain, who has been manipulating the underground labyrinth, hasn't made a single move against them yet.

Fatgum: Since we have been getting through the underground labyrinth without encountering any obstacles and it means that Mimic is unable to manipulate the entire labyrinth at once.

Erasherhead: Mimic must be busy dealing with the Police Force above us.

Lock Rock summarizes that Mimic's Quirk's range of control is limited. Aizawa hypothesizes that Mimic's range of control depends on where his body is at the time, moving around the surface of the walls and then in a particular area, starts manipulating it.

However, earlier Mimic was watching the battle where Tamaki was battling Hojo, Setsuno and Tabe. Mimic was surprised that Tamaki was able to defeat the three Eight Bullets.

Meanwhile inside the headquarters near the entrance to the underground labyrinth, Bubble Girl and Centipeder 
have defeated and rounded up the yakuza.

One of the yakuza mentions that the Heroes should have cooperated, to which Bubble Girl replies that he is crazy for thinking that. Another yakuza mentions that they are all quite sane and if they had cooperated with the Heroes, Overhaul would have killed them in an instant.

Jack:....What? What are they referring too.

Bubble Girl: They are referring to Chisaki, Music Zest. One of the yakuza had mentioned that Chisaki started using the name "Overhaul" after he fell and became like that.

Through the phone call, Jack then heard the yakuza had stated that their boss was once a noble yakuza, looking for a way for the yakuza to live in today's world and he resented the fact that the Shie Hassaikai have been designated as a villain organization rather than yakuza.

The yakuza mention that they were all devoted to the boss, but their new boss who has given himself a villain name and started taking in actual villains into their group, fear that this may be the beginning of the end. Bubble Girl assumes that Overhaul is quite hated and asks if they didn't think he'd be caught, to which the yakuza agree.

Jack: While that's a relief that they were caught.

The captured yakuza mention that the ones who don't think about or care about the consequences are strong.

Mimic then targets Eraser Head.

In the underground labyrinth, Aizawa is attacked by a piece of manipulated wall, courtesy of Mimic. Shota deduces that Mimic is angry at him for figuring out the mechanics behind his Quirk. Mimic prepares to shove Shota into another room using the slab of manipulated wall, but Fat Gum shoves Shota out of the way because the Heroes need him.

Once Fat Gum is thrown into another fight, As Fat Gum gets up, he is surprised to see that Eijiro is with him. Eijiro tells Fat Gum that he was also trying to protect Shota as well but once he did, he was swallowed by Fat Gum's Quirk. As they get up, Fat Gum states that they should brace themselves.

Kendo Rappa had effortlessly breaks through Red Riot's defense and Jack didn't even see it coming

That's how it went from there!

Jack: Kirishima! Lookout!

Suddenly, a large and muscular member of the Eight Bullets appear, Eijiro activates his Red Riot Unbreakable but The Eight Exppendable member known as Rappa launches rapid bullet-like punches at great speed, striking Fat Gum and Eijiro with a flurry of fast and strong punches.

Jack tried to use his quirk to defend Kirishima!

Jack: 🎶BACK THE FUCK OFF!!!!🎶

Rappa stops amd dodges the sound attack.

Rappa:  Fighting with weapons such as guns and swords and sounds are so boorish. Using such weapons isn't fighting since you can automatically win using weapons.

Jack: What...? What are you getting at?

Rappa: A true fight is when people use their own potential and strength to win.

Fat Gum was able to mitigate the damages of the rapid fire punches thanks to his Quirk.

Fat Gum: Are you two alright?

Jack saw that Eijiro was smashed into a wall and mitigated the impact thanks to Red Riot Unbreakable.

Kirishima: I...I can still fight...

Jack: No! Kirishima! Your arms...their bleeding!!!

However, Eijiro sees that his arms are bleeding and becomes shocked that Rappa's punches managed to break through Red Riot Unbreakable's defenses.

Fat Gum counters with a punch of his own, but is surprised that his punch strikes a barrier instead.

The Eight Bullets member who made the barrier known as Tengai, notices that Fat Gum and the boys, one that can harden his body and the other that protect himself through sounds of music.

Quirks that excel at defense and voices his disappointment to Rappa. Rappa strikes Fat Gum with another set of rapid bullet-like punches. Fat Gum was able to hold up but his body has bruises on it and is surprised Rappa could damage his own fat. Rappa isn't sure about them excelling at defense since Fat Gum is barely standing, although he praises Fat Gum for not turning into ground meat right away.

Fat Gum: (The Eight Bullets standing in front of them have a bullet-like punch and barrier Quirks respectively and sees that they will be a problematic combination to deal with.)

Tengai remarks that they are shield and lance while Fat Gum and Eijiro are shield and shield.

Jack: Hey! What about me? If they're the both the shield...then that makes me the sword!

Jack hollered his quirk real loud but Rappa pushed it back making more destruction hit the city.

Rappa is disappointed that they won't have a fair fight since Jack, Fat Gum, and Eijiro are not a good combination.

Tengai notices that Eijiro can hardly be called a shield. Eijiro grimaces in pain after Rappa managed to break through Red Riot Unbreakable's defense.

Jack: N-No way...

Kirishima: ?!!

Eijiro became more afraid that if Rappa punches him once more time, he won't be able to take it.

Kirishima: (After all this time...I haven't gotten stronger...)

Jack: (What should I do?! I should do something...Right?!)

Fatgum: You two!

Fat Gum:  Kirishima! You can still be unbreakable because if your spirit breaks as well then they are done for!
Anderman! Eliminating villains is about making them lose the will to fight! What will you both do if your spirits are broken before theirs.

Tengai remarked that they intend to win against them while Rappa is satisfied that Fat Gum understands his beliefs. Having a bit more of confidence, Eijiro decides that they are going to crush their opponents and Fat Gum declares that they are going to get back to everyone else.

He was excited that the battle got more interesting.

Rappa: Tengai. Let down the barrier. I  do not need it.

Tengai replies that Rappa should not be so selfish since they must not forget Chisaki's orders and that they must use their combination to ensure victory for Overhaul's sake.

Annoyed, Rappa strikes Tengai with multiple fast punches, only for Tengai to raise a barrier to shield himself from Rappa's attacks.

Jack: (He attacked his own teammate just to fight?!)

Tengai: Rappa...You fool... You're so hardheaded.

Rappa replies that he was deciding things for him which he did not like.

Tengai ends the argument by saying that Rappa can do whatever he likes as long as he takes care of business. Satisfied with Tengai's understanding, Rappa agrees with him.

Now that their small argument is over, Rappa turns his attention to Fat Gum and strikes him with fast multiple punches like before.

While he withstands Rappa's attacks, Fat Gum ponders about his next course of action; Rappa's attacks are too fast for him to dodge and by simply tanking Rappa's attacks he will eventually wear down. Even if he was able to fight against Rappa, Tengai will raise his barrier to protect him.

Fat Gum concludes that taking down Tengai is the best course of action for winning the battle, but this will prove difficult since Eijiro is badly hurt.

Having no choice, Jack gets into the fight as well to launch a sound wave though his mouth as Rappa dodges the attack. Fatgum taunts Rappa into a fight to determine who is stronger: Rappa's punches or his own body.

Fat Gum demands that they duke it out, making Rappa extremely excited. Tengai decides not to interfere, which makes Rappa happy. Rappa launches an assault on Fat Gum with his multiple fast punches while Eijiro watches in disgrace as he is unable to do anything.

Even Anderman, who couldn't do much but yell, rant, and rave, was able to still stand on his own feet while Kirishima couldn't do anything...

Jack can still fight while Kirishima can't...

Kirishima: (I'm so useless...)

Eijiro is still disheartened that his newest technique, Red Riot Unbreakable, is useless and that all he has done thus far is get in the way.

Rappa continues his rapid punch assault and kicks it up a notch; Fat Gum is starting to take strain while an excited Rappa hopes that Fat Gum doesn't go down yet as his shoulders are finally getting loosened up. Eijiro is stressed that he cannot figure out what to do and wonders if there is nothing he can do, becoming distraught over his lack of strength.

Tengai sees Eijiro's fear and notes that the look in his eyes.

Tengai: Pity...He's done...He has accepted defeat.

Jack: Kirishima!!!  

Kirishima: ?!

Tengai/Rappa:....

Jack: DON'T GIVE UP!!! I KNOW YOU'RE SCARED! I'M SCARED TOO! BUT YOU CAN STILL BE A HERO IF YOU GET BACK UP AND FIGHT!

Kirishima: Anderman...?

Rappa: Are you stupid boy...You can't surely-!

Jack: SHUT UP!

He then look back at Kirishima...a heavy look clouded his features.

Jack: You're not alone...I also...know how it feels to be weak...