Menhera Usagi wa Yandere Ookami ni Dekiai sareru

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 sneakily looking through his phones and kicked her out of the house. And that's when Itoshi, the super kind younger guy who completely accepts her, comes to the rescue. His gentle comfort soothes Tsumugi's broken heart, however, there's something he's hiding...!? (Source: Shueisha, translated)