A Hate Story Made of Wallpaper

Her younger sister was like the heroine of a novel. At school, she had a dramatic romance that no one approved of; later, when they were grown, they reunited to everyone's delight. She cried over it again and again, but the person who broke her heart would never be the one she loved.

She should have been a gentle older sister, there to comfort her when she was sad and get her out of trouble when she made a mess, not pinning her most beloved little sister down on the bed while their aunt lay gravely ill.

Xu Yun stared at the trembling girl beneath her, curled up and tear-streaked.

A forcibly picked melon may not taste sweet, but at least making her cry would be a privilege only she could claim from then on.

*How a losing older woman is driven mad by a younger ray of sunshine

*If a happy ending means the protagonists are alive and still together, then this book has one

*The protagonists grew up together, but have no blood or legal ties of any kind

Theme: A forcibly picked melon is bitter.