Kirishima never expected something like this to happen. How could anyone, really? He had left work early for some errands with his moms but decided to come back and help Kaminari clean up the workshop before closing, he didn't expect to see the blond pale and cold on the floor, surrounded by a red pool of blood. Not long after, the police and an ambulance were all over the place, Kirishima couldn't stop replaying the moment in his head; the moment where he felt his world crumble down upon him. Who could've done this? Who could've come and killed his best friend?... It isn't like they were a troublesome duo, no! In fact, up until now, Kirishima thought they got along pretty well with everyone. But he wouldn't let this slide, he would find whoever did this and send them straight to jail, that's why he hired a detective: Katsuki Bakugo, very well known for being the best in town, if not the whole region. He knew he would find the culprit, but he didn't expect finding out about even more haunting secrets...