She investigated the enemy who killed her mother, but unexpectedly discovered that that person turned out to be Jin Xize, the person her friend loved most. In order to take revenge, she put aside friendship, hurt her again and again, and saw her friend's heartache again and again... The revenge was successful, and he was not dismissed from the school because of his excellent grades. He was in despair, but she couldn't be happy. In an unexpected car accident...