Who Made Aizen a Marine?

As Tang En read through the document marked S-level top secret, his brow quickly furrowed.

A series of lines appeared clearly on the white page.

Name: Sosuke Aizen.

Navy ID: 012367

Rank: Lieutenant Commander.

Overall assessment: Though this man's abilities are lacking, he is mild-mannered and conscientious. A highly loyal marine who can be entrusted with important responsibilities.

The more Tang En read, the more his brow twisted into a knot. He couldn't help but hiss.

Wait, who made Aizen a marine?

And who the hell wrote this ridiculous assessment?

As time went by, Tang En gradually realized that this world had gone completely mad.

One after another, characters from other worlds appeared and joined his squad.

Sasuke Uchiha, Yoriichi Tsugikuni, Tanjiro Kamado, Sukuna, and others.

In the end, this world had become a complete mess.