Xu Yiming prayed for a peace charm for Wen Xu for thirteen years, donated a kidney, and wrote more than 400 love letters... Even when she died, she was still worried, worried that he would be bullied, worried that he could not take care of herself... Wen Xu could not know her thoughts until she died, until he saw the red tree full of peace charms, until he finally found out the person who donated a kidney to him, until he broke all the locks in her room...
The male protagonist is not a scumbag, and the female protagonist is not mean either. It's just that both of them are duplicitous people who love each other deeply at the same time.