Wonder School Boy

Tsubaki Tenji appears to be an ordinary high school student, but he secretly works as a detective at night. He acts somewhat clumsy and unassuming in school, yet is physically adept, using 500 yen coins as weapons in combat. His work is driven by the need to repay his missing father's massive debt. He is employed at the Muroto Investigative Agency, working under Muroto Shino and with Shino's younger sister, Yuki. Due to his late-night activities, he is often drowsy during the day. If his school discovers his secret, he risks being expelled.