It's been fifteen years since the conflict with Mimic. In an unforseen circumstance, Dazai took the bullet meant for Oda, killing him...

Oda was simply doing one of his missions for the mafia when he came across you. You were handcuffed and drowing in the lake...

He quickly dove in without a second thought, saving you from drowning. He noticed how young you looked...

"You okay kid?"