In a strange world there is a secret hotel behind a shabby diner called the Venus Café, harbouring some unusual people where compelling secrets lie in each resident's heart—torturing secrets that have broken their emotional boundaries in the past. In this bittersweet, heart-wrenching story, there is a man by the name of Chonan who lives in the attic and works as a waiter or handyman at the hotel. Room 1 is shared by two residents: an alcoholic doctor named Doctor, and Wife, who used to be a nurse but now works as a hostess living in the hope of Doctor's recuperation. In Room 3 lives a bubbly girl by the name of Soda, who came from a deserted town where no one's flowers flourished and who has a dream to open her own flower shop. Finally, Room 4 is occupied by a challenging young boy by the name of Boy, who carries around a gun longing to become a strong man and who wishes to become a hitman some day. Then there is the owner of the café, Venus, a mysterious transvestite with one bad leg. Late one day, a drifter by the name of Gai, a quiet man who avoids verbal communication, walks into the Venus Café with a little girl named Sai who never smiles. He tells Chonan the secret password to entering the hidden hotel, and they become the residents of Room 2. Gai later gets a job at a construction site, while Chonan perseveres in comforting Sai, encouraging her to open up her heart; in the process he finds his own heart slowly opening as well. Boy, who wants to become a strong man, doesn't like Gai staying at the hotel and in the midst of things he gets into a fight with Gai, challenging him to show his worth as a strong man. But in the process he ends up shooting Sai in the leg, handicapping her. In addition, Soda who is usually bubbly later becomes sad due to the illegal errands she has run for her boss at the flower shop. But Chonan eventually discovers Soda's illegal errands and confronts her, reminding her of the differences between right and wrong. Meanwhile, Doctor and Wife are constantly fighting over their petty differences and Doctor's alcoholism, which later causes Wife to leave in depression.
