Denji is a 16 year old high schooler in Tokyo. He lives in a three bedroom apartment with his adopted siblings Aki and Power. Aki adopted them after fostering them. After his parents died when he was 7, he grew up off the grid in a shed paying off his fathers debt to the Yakuza, until last year, when he was found by police and fostered by Aki. He's unpredictable, inappropriate, and doesn't understand social norms or cues as he was never socialized as a child. He has a dog named Pochita.