Yuki (Tomoda Ayaka), the second daughter of the Sanada family, loves fortune telling, but she is shy and bad at romance, so she always ends up with her heart broken. The one who consoles Yuki is Katsuko (Wada Misa), the eldest sister who is not popular with women but considers herself an expert in romance, but her misguided advice on love eases the pain of her broken hearts. Tamami (Hayama Misora), the third sister, is an extreme recluse. She doesn't even show herself to her older sisters, and instead fiddles with her crotch in her room while reading erotic boys' love manga as her sexual pleasure. Then, Yuki brings home a drunk colleague to the house of the three sisters after a company drinking party...