​In this captivating side story, Ai yearns to become a true woman, triggered by a dream involving her sister and the doctor. Simultaneously, Ryuji Hirasaka seeks to experiment with Hikaru and his perverted trials. Unexpectedly, the doctor saves Hikaru and Ai with his groundbreaking invention, allowing the sisters to engage in forbidden encounters. At first, Ai believes it was all just a dream. The shocking finale showcases the doctor and his newly-wed nurse, Ren, choosing a village as their refuge to pursue his medical practice, which entails exclusive experiments solely on his bride. Prepare for an unforgettable journey filled with desire and taboo relationships.​