Tsumugi is a menhera girl who's been dumped by a string of boyfriends for being too clingy. Her last boyfriend got angry at her for looking through his phone behind his back and kicked her out of the house. And that's when Itoshi, a kind and gentle young man who seems to accept her completely, comes to the rescue. His gentle comfort soothes Tsumugi's broken heart, however, it seems like he's hiding something…!?