Sunako lives in her aunt's house along with four very handsome boys. She's plain girl whose solitude comes first and who likes horror a dark human being to the core... When Oba-san sad, "If you can turn my niece into a lady, you can live here free of rent for the next three years, "the foursome start doing everything they can, but Sunako-chan considers 'radiant creatures' to be enemies, and they annoy her. The path to becoming a lady is long, and there's no sign of progress in Sunako-chan and Kyouhei's relationship.