Life of Mariko in Kabukicho

Mariko (Sairi Itoh) works as a bartender at a small bar in the alleyways of Shinjuku Golden Gai, Kabukicho, Shinjuku, Tokyo. She also works as a private detective. One day, she receives a request from an organization. Their request is to find an alien among people in Kabukicho. She tries to find the alien with help of her boyfriend Masaya (Yutaka Takenouchi).