Gu Xi's life has been in a quagmire from the beginning. Her mother suffers from mental illness, her younger brother is also suffering from mental illness, and her father drinks and gambles all day long, beating and scolding her frequently. She huddled in the dark and dilapidated alley of Ganghua Road in Anseong. She grew up in endless beatings and despair. She was used to wrapping herself in a cold and hard shell. She could only rely on her extraordinary intelligence and tenacity to struggle forward alone in the darkness. Pei Jinyan lives in a completely opposite world. He comes from a wealthy background, his father is a corporate president, his mother is a university music teacher, and he has a younger sister Pei Qin who is loved by the whole family. He is extremely talented and has an indifferent temperament. He is the pride of heaven that is unreachable in the eyes of others. The two became roommates at Ancheng No. 1 Middle School, and their fates were intertwined. Pei Jinyan saw through Gu Xi's fragility and embarrassment under her cold appearance, and silently blocked the rumors for her, protecting her remaining self-esteem; Gu Xi was also greedy for this hard-won warmth, and gradually let down her guard, and the two hearts got closer and closer as they got along day and night. Pei Qin likes this quiet and tough girl very much, and sincerely hopes that she can become his sister-in-law.
However, a sudden tragedy took away Pei Qin's life, and all the fingers and blame were pointed at Gu Xi.
The Pei family completely broke with her, and the formerly gentle Pei Jinyan collapsed overnight, falling into endless pain and hatred. He forcibly imprisoned Gu Xi and tortured her day and night in the most cruel way in the name of love, leaving her unable to rest in guilt and despair. Gu Xi was burdened with unfounded charges and wanted to atone for his sins. In the end, he was overwhelmed and went abroad, completely disappearing from his world.