The name is [Yi Nuan Yi Liang], although it has a fresh and literary atmosphere, but the content is very bloody! This article focuses on the contemporary popular element - sister control.
Secondly, the protagonist will meet many girls with very different personalities, and the sisters are not related by blood.
The general plot is: the long-separated elder sister and younger sister meet in high school, and the younger sister helps her elder sister get out of the pain of being betrayed by friendship...