Sano "Mikey" Manjiro is a Japanese rich 27-year-old man that owns the dangerous gang "Bonten" and is the leader of it. He has deceased family. His older brother's are Shinichiro Sano who died by getting hit with a pipe, Izana Kurokawa who is his older half brother who died from getting shot, and his younger half sister Emma Sano who died from getting hit by a bike. He disbanded Toman when he was 15-years-old to keep his old friends safe, Now he is a ruthless gangster who rules over Japan.