Shuichi Katayama is an office worker whose hobby is loving male idols. He has no girlfriend, few friends, and leads a dull life until he happens to stop at a host club and meets the host, Yu Tsukishiro. A simple businessman and a host on the verge of turning 30. The two men, who were not originally meant to cross paths, gradually build a mysterious "adult friendship" as they share their hobbies and life problems...!