Luo Yu, who lived in the shadow of her father's violent abuse of his wife, grew up alone and became cold and hardened. She did not believe in love, was afraid of love, and avoided love. Only her sister Jing Yu, who gave her sunshine when she was young, and Gu Moyao, her only close friend who later supported and trusted her, protected her and gave her warmth. Gu Moyao's strong possessiveness puts Luo Yu in a dilemma. Between her sister and her friends, what changes will happen to her fate due to her choice? She doesn't believe in love, and when faced with other people's expressions of love, she avoids and doubts them. Gu Chen, who appeared by her side as a friend, guarded Luo Yu's bottom line, retreated in order to advance, and guarded people who knew there would be no results. Can he satisfy the friendship of a friend even though he is willing to do so?