1, Wen Dongen (played by Song Hye Kyo Jing)

Victims of school violence. Wen Dongen, a primary school tutor, was forced to retire because of serious school violence and bullying when she was a student. She lost her smile and became a person who was desperate for life and only concerned about the weather forecast.

2. Park Eun-jin (played by Yin Zhiyan)

In the past, leaders and implementers of school violence. Park Yanzhen is a woman who has everything and is not jealous, but she used violence and bullying on Wen Dongen when she was a student. She continued to live a perfect life without a trace of regret. However, she was finally attacked by fate's boomerang and gradually tightened her neck.

3. Zhou Ruzheng (played by Li)

Wealthy plastic surgeon. There are complex secrets hidden under Zhou Ru's glamorous and chic appearance. In order to protect Wen Dongen and become her revenge helper, he decided not to be her prince, but to be the executioner who helped her dance on the tip of the knife.

4. He Daoying (played by Zheng Chengri)

Park Yan-jin's husband. He is the representative of Ping Jian, but he fell into the trap set by Wen Dongen.

5. Jiang Xiannan (played by Lian Huilan)

Another victim of school violence. Jiang Xiannan is a man who has to take part in a revenge plan to protect his children. She offered Wen Dongen cooperation and decided to take revenge together.