Ricky grew up on the street surrounded by prostitutes and drug addicts, once left alone in the age of twelve. Now he is 23 years old and he decides to open a brothel, a club called "Hiroshima" as a gift to his mother-prostitute, who is about to be released from prison. Ricky wants Pura to lead the club and forget about her past. Many friends help him, sometimes quite eccentric ones. Ricky tries to awaken his mother's feelings and love in Pura’s heart, who left him many years ago. However, achieving this is not so simple.