Cry Me A Sad River (2018)

Yi Yao and Qi Ming are neighbors and friends who go to the same class. Transfer student Tang Xiao Mi takes a liking to Qi Ming and becomes jealous of Yi Yao's good relationship with him. She follows Yi Yao and discovers a secret of hers. Tang Xiao Mi then uses this secret to start bullying her at school, and all other students join. The bullying slowly destroys Yi Yao, until Gu Sen Xi appears by her side and helps her regain the courage to keep going. But tragedy strikes once again.