phantom thief Kokichi Ouma x detective Shuuichi Saihara AU

Shuuichi: Shuuichi is in his work office, working on an unsolved case while drinking coffee

He hears a familiar laugh

Confused, he quickly turns around.. To see a familiar figure outside the window, waving at him with a grin on his face

It's Ouma, the phantom thief, that he's been searching for..