AUTHOR'S NOTE

Sakaguchi Ango is a member of The Special
Division for Unusual Power who have mission to spy on
Port Mafia, but he ended up become a triple agent.
Because he is doing his mission for justice, he even
betrayed his friends, Dazai & Odasaku, which later he
regretted about it. Under rains, Ango face Oda's
grave, and finally realized something he can do for
Dazai.