Boku Wa Chiisana Succubus No Shimobe 1 ((install))

This is a series. Volume 1 contains:

By the end of the first volume, Yuuma accepts his role as Lilim's servant — not just out of survival, but because he has grown fond of her. Lilim also confesses (in a roundabout, blushing way) that she wants to stay with him even after her training is complete. Marble, satisfied with their progress, lifts the death curse but leaves a milder version so they continue their relationship. The volume closes with a new challenge: another young succubus moving in next door, setting up Vol. 2. boku wa chiisana succubus no shimobe 1