(Yuu) Heaven Keibi <- Black

Super! Hinata, a naive little boy, goes to an interview for a part-time job at a security company in order to become a respectable adult. As soon as he meets Hijikata, a no-good adult, he is mugged by him! I will never become such an adult! Hinata is saved by Hijikata, who has a little bit of a cool side to him. ...... Hinata's life as a part-timer at a black-owned security company with a few quirks starts...! (-DeepL)