* Based on an action suspense shounen manga by Wakui Ken.
Watching the news, Hanagaki Takemichi learns that his girlfriend from way back in middle school, Tachibana Hinata, has died. The only girlfriend he ever had was just killed by a villainous group known as the Tokyo Manji Gang. He lives in a crappy apartment with thin walls, and his six-years-younger boss treats him like…