Tabekake Gospel Plan: Dear Succubus Sister

Tabekake Gospel Plan: Dear Succubus Sister summary:

As the child of a human and a succubus, Miori spends her days at a church she ran off to as a child, trying to keep her hunger under control. However, as a man's life force is essential for her survival, she regularly sucks small amounts from her childhood friend Mahiro... Until one day, their relationship slowly begins to change.