[Kanroame] I've started Saimin treatment Ch. 4 [MTL]

Ruru, a schoolgirl in a uniform, discovers that a mysterious treatment has amplified her erotic feelings, making everyday moments pulse with desire. She becomes obsessed with a recorded video of herself and a schoolboy, watching the footage while feverishly stimulating herself, her body trembling with each climax. The story builds tension as the treatment's effects push her toward an uncontrollable, addictive pleasure that blurs the line between fantasy and reality.