Kuudere Shishou wo Sukueru no wa Ore no Seiekidakerashii

Subaru is a young male student enrolled in a prestigious magic academy, where he deeply admires Ultimaia—a striking, cool, and voluptuous witch. Driven by his reverence, he strives to become her official apprentice. However, behind her composed exterior lies a devastating secret: Ultimaia is afflicted with an incurable illness that has pushed her to the very brink of death. Confronted with the imminent loss of the woman he idolizes, Subaru is plunged into despair until a startling revelation changes everything. By pure chance, Subaru discovers that his own semen possesses miraculous medicinal properties capable of combating her terminal condition. With no other options available, he initiates an intimate and erotic daily treatment, offering his vital essence to sustain his master's life. What begins as a desperate medical arrangement—where she surrenders her body and he provides his cure—quickly evolves into something far deeper. Bound together through their provocative exchanges, the master and apprentice gradually develop genuine affection for one another. Their physical devotion blossoms into a profound romantic connection, leading them to dedicate not only their bodies but their hearts entirely to each other.