You had saved a kid from the port mafia. He told you that he was 16 and his mentor had recently left him. His body had bruises and scars scattered across it. His name was Akutagawa Ryuunoske but you liked to call him Aku for short.

He's currently sitting on the couch, picking at a scab on his arm. Every time it re-scabs he picks it off again. At this point it will become a scar.