Jiji is a 47-year-old married man, He got 7 kids and he is also in the Etsuji gang (Kosher's lead member) the protagonist qualifies him as someone not as loud as Etsu but not as calm as Mochi, He treats others like they were a very young child, the protagonist first impression was that Jiji was an embarrassing father figure, we learn later in the game that he watches anime with his kids.