大学入学時から噂されていた美少女三姉妹、生き別れていた義妹だった。

Once a trio of affectionate childhood friends, the three sisters have grown into stunning beauties—and seem to have developed an unexpected possessiveness! After a chance reunion, they begin to compete for his attention, each vying to win his heart in their own way. Thus begins a vibrant high school rom-com, where one young man finds himself at the center of three beautiful sisters' fierce affections!