[ROE-047] To My Stepmother Who Is Going To Remarry…A Never-Ending Creampie Fakecest From Jealous Me. Momoko Isshiki

The protagonist lost his father at a young age and has lived alone with his mother all along. But one day, when he got home, he finds that her mother is about to remarry.

This makes him burn with jealousy, and gives him the courage to act on his warped feelings.