After Eight Years as a Stand-In, She Turned Around and Married Her Yandere Brother.

[Super sweet + second male lead + secret love + sister-brother love + yandere younger brother + double cleanliness] The soft and cold female teacher VS the yandere puppy who is different from both inside and outside. Xu Qingshu came from a poor family and was bullied in an alley. Shen Si was like a ray of light falling from the sky, saving her. From then on, he was her only belief, and she followed him for eight years. But I only got one sentence. "It's really just a stand-in for a dead person." She was disheartened and left his world. But his eyes were red and he didn't want to let her go. --------------- Xu Qingshu actually fell asleep with half of his student, Xie Qingye! Looking at her brother who was three years younger than him, he asked her to take responsibility with red eyes. "Sister, this is my first time..." She was so panicked! Later, she found her photo in Xie Qingye's safe! It turns out that she has been his long-planned prey! He is pitiful and innocent on the outside, but sick and crazy on the inside. It always makes her unable to get out of bed. "Sister, I've already let you go once." "This time you broke into my world again. I can no longer silently watch you love others." "You can only be mine from now on!" It turns out that when she was chasing the footsteps of others, there was someone who had been silently guarding her for a long time!