Chu Mian, the Chu family's adopted daughter, was sent to Feng Island on the border at eighteen to take the disaster in place of Chu Xing, the family's biological daughter. She survived alone on the isolated island for three years before Li Tianque, the powerful head of the Li family, brought her back and imprisoned her in Rose Garden as a substitute for his deceased older sister. Pretending to be insane, Chu Mian lies low, evades the Chu family's persecution, and waits for her chance to take revenge. She damages the Chu family's reputation, publicly exposes Chu Xing's hypocritical facade at a birthday banquet, and uses the oil-painting skills she acquired on Feng Island to compete in the international Obsidian Awards, reclaiming her identity and dignity. Li Tianque abandons his obsession with having a substitute and develops genuine feelings for her. Together, they fight their enemies, and Chu Mian achieves her revenge and finds equal love and a new beginning.