Nana is married to her husband and is living a happy life. One day, her husband invites her on a trip and Nana comes to a certain inn. Nana was supposed to enjoy some rest with her pleasant landlady and her husband, whom she had forgotten about for a while, in her clean room... But tragedy strikes. A gambling hall called Tetsugamkai is held in secret at the inn. Isn't her husband going to be there? deer