Chang Ya and Chang Xin were twin siblings and Ran Xueyi's cousin from her father's side. They were both in their senior high and at the age of half past seventeen, they already have a spot on top universities like T University and Capital University.
Aside from their achievements they received from school, the two were also famous for their beautiful faces and good temperament that made anyone want to approach them. Sadly, these pairs of siblings never let anyone in their lives easily. They chose who they wanted to be close with and who they didn't like.
And one of the few people they liked naturally became Ran Xueyi, who ever since they were young took care of them and treated them so preciously as if they were her real younger siblings, spoiling and pampering them until they no longer want to be spoiled by their parents but still want Ran Xueyi to do that to them.