With the proposal Let s make a baby High school student Kotori is roped up into a fake relationship with Sei the head of the wealthy Takamiya family Even though Kotori s traumatic past makes her uneasy with other people she can t escape this situation but Kotori isn t the only one with secrets Being forced to visit Sei every day actually shows he s keeping some of his own As the Takamiya family aims to continue its lineage Kotori s gradually getting caught up in their schemes Clumsy but also straightforward this story follows a lonely girl and a troubled nobleman s son s love story The Takamiya Family and the False Fianc e 5