a male infiltrator.

Frequent panties disappear. Not only did it start from the lockers of sports gyms and laundry at home, but also began to be damaged by women being robbed of their underwear on the street at night. A large number of women's underwear were found in a boys' school. The connection to the series of serial thefts was suspected, but a secret intrusion investigation was carried out due to the sanctuary of school. Therefore, Hakuba's arrow stood up as a female school student agent, Tsukasa TSUJI, who was good at disguising.