His parents were killed by his enemies. As an older brother, Chen had to send Yin out of the country in order to prevent his sister Yin from leaving a shadow in her heart. Little did she know that the accident had already planted seeds in Yin's heart. Yin and his housekeeper, who had just seen their parents' remains, went to Country M... Ten years ago Later, he brought his good sisters back to Country Z to avenge their parents, and entered a school anonymously. They went to the same school as Feng, Chen, and Xuan, and were in the same class with the daughter of their enemy... How will they make the school uneasy? Who will win in this revenge battle?