SONE-640 After I Started Dating My Childhood Friend's Little Sister, the Older Sister I've Always Had a Crush on Goes Mad with Jealousy and Seduces Me with Her Bare Breasts - Yume Aika

After the male protagonist starts dating his childhood friend's younger sister, the older sister—who has always secretly loved him—goes mad with jealousy. She seduces him directly with her braless, beautiful breasts, leading to a series of intense physical entanglements. Using her voluptuous breasts and teasing techniques, the sister relentlessly arouses the male protagonist's desires, drawing them into a taboo incestuous relationship. The film is filled with jealousy, seduction, and nonstop climaxes in its adult storyline, depicting twisted emotions and carnal conflicts within the family.