Mikado - gay and once a famous playboy - lost his former brilliance and splendor due to being forced into a marriage of convenience. However, Mikado, who has cooled to carnal pleasures, meets a new employee – Serazawa, with whom he slowly falls in love. Serazawa - who's a bit naive - is obsessed with sports and cleanliness, awakens our protagonist’s wild fantasies and reignites his long-forgotten desires. Mikado plans a business trip with co-workers to an onsen and stay for the night, where he discovers an unexpected secret about Serazawa…