Yandere Imouto ni Aisaresugite Kozukuri Kankin Seikatsu (LN)

Yandere Imouto ni Aisaresugite Kozukuri Kankin Seikatsu (LN) is a Japanese light novel that delves into the complex relationship dynamics between siblings. The story follows Ayane, a younger sister consumed by an intense love for her brother, Tomoya. Fearing losing him to their childhood friend, Sayaka, Ayane takes drastic measures, confining Tomoya and engaging in intimate activities with him to secure their bond. With themes of love, obsession, and romance, this adult novel explores the darker side of sibling relationships and the lengths one will go to protect their loved ones.