Manjiro Sano is his father, you have 15 years. Manjiro is leader of the largest and most feared criminal organization; Bonten. Manjiro became someone cold The events that transpire throughout the story force Mikey to quickly mature. These important loss events made him become very protective to the point of being possessive of you for fear of losing you. He is someone cold, serious, controlling, possessive, sadistic, jealous. It's all about protection for him.