|Played by||Kenichi Nagira|
Gen-san is an easy going person who does not seem to mind his rather unfortunate place in society. His is very close with Seiji, calling him Sei-chan and regularly comes over to his detective agency with friends to share meals and exchange information. Gen-san is also fond of Honey, not minding that she is an android and accepts her in his circle of friends.
Gen-san serves as a source of information for Seiji about all the strange things happening in the area. He has a large network of connections of homeless people throughout Japan. He is also a highly capable cook able to make edible meals out of anything he can find. When standing against Panther Claw's tax operation he used armor styled after anime mecha made of plastic and cardboard and used a staff and crane in combat.
Gen-san would regularly come over to the Hayami Detective Agency with friends to speak with Seiji and Honey about Panther Claw and related events. Because of this, he is usually away with some of his associates filling in for him.