Maa-kun deepens his hypnotic control over Haruna, manipulating her into believing that sexual acts are essential parts of her tutoring lessons. After breaking her resistance and forcing her into a submissive maid role, he turns his attention to Serina. By leveraging Haruna's brainwashed state and his own hypnotic powers, Maa-kun forces both sisters into a state of absolute obedience, culminating in a depraved threesome where they are reduced to mere slaves of pleasure.