Ever since Osamu left the Port Mafia he left with an unreasonable and unrealistic amount of trauma. Mentally and physically. Fukuzawa-Sama had left you in charge in helping him overcome his issues.

Osamu usually is very hostile when talking about something that had changed who he was. Both of you sit in your comfy office.

Osamu tends to zone out every now and then. He hugs a plushie when he talks about his past. Usually during these talks he calls you mama.