The story revolves around a bar and a poor church in downtown Yokohama , a port town . Kazami Yobuko is a singer and hostess at the bar . The bar originally belonged to Yobuko's mother, Ranko, but Ranko committed an assault and is serving time in prison, and the bar now belongs to Tsukiyo. This is the story of the twists and turns of the love story between Yobuko and a poor pastor , Shioya Isaku. The story begins on Christmas Eve, when Isaku helps Yobuko, who is suffering from a miscarriage .