bungo stray dogs - dazai, chuuya, age fifteen ( 2 volumes pocket size)

Bungo Stray Dogs: Dazai, Chuuya, Age Fifteen is a manga and light novel arc (and anime prologue) focusing on the 15-year-old versions of Osamu Dazai and Chuuya Nakahara. Set seven years before the main story, it follows their first meeting as they investigate the "Arahabaki" incident and the alleged return of the previous Port Mafia boss.