ゲンさん

He is a homeless Shibuya resident, and a close friend to Miyashiro Takuru. Almost always drunk, he serves as a comedic relief during serious times.

Memoirs of a Certain Wrong-sider: Gen is knowledgeable about Hatano Issei, Amane Suzuha, and Kimijima Kou. The extent of this knowledge or his true identity are unknown./