Hebigami-sama no Hanayome wa Yasashii Kazoku ga Hoshii

Makoto Sawaguchi's parents have been on bad terms with each other ever since she was little, and she has spent most of her life holding herself back for their sake. But after her parents divorce, she's deeply hurt by the fact that neither of them treated her as family. In the midst of her sadness, Makoto hears a strange voice calling for her. Following the voice, she comes to a certain shrine where she finds a super handsome man named Ryuuka. But in addition to Ryuuka, an enormous black snake also shows up...?!