"I promise... I'm going to win you over, body and soul." All Aoi wants is to be able to enjoy her youth just like any other teenager her age, but she's stuck acting as a caretaker for her childhood friend, Souma. If that weren't bad enough, Souma is a total piece of trash that gobbles up any girl who comes along like some ravenous beast! "I'll never let a guy like that have me!" she promises herself, but Souma one day declares that there's a girl he "needs more than life itself" and starts making advances toward Aoi?! "Tonight... I want to sleep with you," he says and carries Aoi to his room, uses her as a body pillow, and even kisses her..?! She's unable to push him away for some reason, and... Thus begins the sugary romance between Aoi and her assertive childhood friend who's set on winning her heart...!