I Slept with My Brother’s Sister, and She Turned Out to Be a Yandere Campus Belle

[Lighthearted everyday life] + [One heroine] + [No rebirth] + [No System] + [Older woman-younger man romance] + [Yandere] Ye Nian’an was a boy from a broken home. By a strange twist of fate, he ended up sleeping with a female CEO, only to discover the next morning that she was not only his best friend’s older sister, but also the campus belle at their school. His friend grabbed him by the collar and pulled out a knife. “Bro, find out who slept with my sister. I’m going to kill him!” His friend, Xie Yan, was a cringey sister-obsessed guy. His sister was his whole world, and he would fight to the death with anyone who laid a hand on her. But the one who had laid a hand on his sister was his very best friend. Whenever Ye Nian’an got an order, Xie Shiyue would place a thousand orders with him. When he went to sing at a bar after class for extra cash, she would book out the whole place. When he flirted with girls in the classroom, she would show up as his teaching assistant. She wanted to appear in and possess his entire world. She wanted every inch of his world to be filled with her presence. Control. Possession. Total domination! She wanted him to belong to her alone, to belong only to Xie Shiyue. Ye Nian’an vented online to a confidante he called “Miss,” not realizing that this so-called “Miss” was Xie Shiyue, the very woman he wanted to escape. All of it set her nerves on edge, pushing her to the brink of yandere obsession. He had personally pushed himself to the edge of a cliff, with nowhere left to run~ Her love surged like a raging sea, fierce and overwhelming. Xie Shiyue said, “Nian’an~ Stop running, okay? Call me your sweet big sister.” “I’ll give you my life~”