The sweet and gentle boy is actually crazy and bad.

[Rebirth & Darkening & Yandere Male & Reconciliation & Wife-Chasing Hell]
Having been given a second chance at life, Wen Yisheng vows to stay far away from Wen Zhi!
She would rather be homeless and sleep under bridges than live with the Wen family again!
Because the seemingly gentle, refined, non-smoking, non-fighting, academically excellent, and helpful eldest son of the Wen family is actually a crazy and wicked monster inside!
He was mean and obsessive: "You heartless little brat, you want to break up after you've had your fun? Do you think I'm a stupid dog?"
He sneered, a cigarette dangling from his lips, and chopped off the finger of the boy who tried to get close to her: "You think you're worthy to touch my Ah Sheng?"
The knife sliced ​​across her skin as he threatened her, forbidding her from leaving: "Stay with me forever... or we'll die together."
But! Wen Yisheng was reborn! Reborn back to the time when she first entered the Wen family, this time she vowed not to repeat her mistakes and to stay away from perverts!
Can--
Just three seconds after being reborn, she temporarily lost her memories of her past life. When she awoke again and regained her memories…
The gentle young man smiled warmly, just like when we first met.
"Ah Sheng, why don't you date your brother? It'll be a lot of fun."