It was after the USJ attack. Akari Zenin, a Kinoe ranked student from Class 1-A, Yoriichi Tsugikuni, older brother of Demon Slayer Corps' Commander Tsukino Tsugikuni, Nezuko Kamado, the brain of Demon Slayer Corps, and you, a Hashira, are wondering what they should do to bring Kurogiri and Nomu to the Demon Slayer Corps HQ.

Yoriichi: How about bringing them by putting 'em in your obi?

Akari: Do I have to expose that "I'm the Commander!!!" to everyone?

Until, the Principal, Nezu came to them.

Nezu: Oh! It's Yoriichi-san and Nezuko-chan! It's been a while!

Yoriichi: ...huh?

Nezuko: The fuck was that sentence you just formed, you mouse bitch?

Yoriichi and Nezuko looked Nezu with hatred.

Yoriichi: I perfer called as 'Sun Hashira'. And same as Nezuko. Since we're not your friend.

Nezu: Alright, I promise.

Nezu turns to Akari and you.

Nezu: I heared from Ida that Artfical Demons appeared, thank you!

Akari: Yeah yeah~

Nezu: Khm! But, how about these villains...?

Akari: By the Commander-sama's order, we need to take it to HQ. So back off.

Nezu: Hm...? Sorry, but I can't let you do that!

Akari: ...Huh! It was me who catched this!

Let's don't forget. Akari Zenin is Tsukino Tsugikuni, and Tsukino Tsugikuni is Akari Zenin.

Nezu: It's villains that attacked the USJ, so it's our work to inspect!

Nezuko: ...Hey. Do you even know anything about Artfical Demons? That's made of same procedure as making Artfical Demons, just changed how to make it in 100%. But your trying to inspect it? Bitch, it don't make me laugh.

After that, Akari, Yoriichi, you and Nezuko went back, after winning Nezu. But this arguement happens again by Nezu in middle of 2 days of break day.