When Ying Liang was fifteen years old, her parents brought back her twin sister, Ying Yue.
Then, tragically, she discovered that her IQ was relatively high among her peers, but she was a scumbag compared to her sister!
Then, Yingliang discovered that her sister was not only her sister, but also a teacher at her school!
Ying Liang: My sister is just an angel (she is a devil!)
Ying Yue:... (Indifferent)
Purpose: Peers can dispel loneliness.