Yun Xiruo, who grew up in an orphanage, struggled to develop a hedgehog-like character and way of survival in an environment where the jungle was strong. Her fierce counterattack caused her to be kicked out of the only orphanage that took her in. She struggled in the social environment, trying to survive, learning from other people's lives, working part-time to earn money so that she could study. Then, she met Wen Lingxian, who was as gentle as the most beautiful piano sound.