MIAA-727 My girlfriend's younger sister is a pure little devil nurse ~ Playing with my second brother who cannot move with a destructive climax by dedicating behavior - Kazuka Matsumoto

The male protagonist, immobilized for some reason and lying in bed, is visited by his girlfriend's younger sister—a naive yet devilishly seductive nurse. Posing as a caregiver, she offers "devoted service," subjecting his genitals to extreme teasing and manipulation. With her masterful techniques, she drives him to shattering orgasms, pushing him to peaks of ecstasy time and again, leaving him utterly helpless. Beneath her innocent facade, this little devil nurse harbors an intense desire for dominance, completely conquering him.