Double-Edged Mask

Dazai Osamu and Nakahara Chuuya are sent to infiltrate U.A. High School under the guise of transfer students, tasked with uncovering a hidden traitor. Forced into an unfamiliar world of aspiring heroes, they quickly make waves acing the entrance exams, clashing with their new classmates, and drawing the suspicion of their homeroom teacher, Aizawa. As they navigate the challenges of hero training while hiding their true identities, the line between mission and reality begins to blur. But with old enemies lurking in the shadows, their past may not stay buried for long.

"Heroes, villains, and nothing in between. No room for anything else. Quirkless kids were as rare here as Ability users were in Yokohama, yet their suicide rates seemed just as high as those born with Abilities. The contrast was almost ironic. In Yokohama, abilities were feared, resented something to be hidden or exploited. Here, quirks were the norm, woven into their very DNA, a fact that had,of course, caught Mori's interest.
And then there was him, All Might. The number one hero. Their shining beacon of hope. A man who embodied everything this society stood for. Dazai scoffed to himself. Extraordinary? Sure. But far too predictable for my taste."