Lin Suya, who grew up as a single parent, met the innocent Zhang Yanfei in college, and they quickly became good friends! ~In the days that followed, Su Ya carefully fell in love with Yan Fei. Because it was a same-sex love, Su Ya did not dare to express it. Until Yan Fei became pregnant and was dumped by her boyfriend, Su Ya had been taking care of Yan Fei and expressed his feelings for her. Yan Fei, who was hurt by the man, did not dare to think about a new man. She accepted Su Ya's feelings and dated him. Unexpectedly, Su Ya's mother, whom she had not seen since birth, appeared. She is also Yan Fei's mother. Su Ya and Yan Fei are half-sisters! Su Ya had no idea about her mother since she was a child, and she had no taboo about not being able to be together because they were sisters, but Yan Fei couldn't accept it, and they broke up! In the end, Yan Fei married a man he didn't love, and Su Ya was waiting for Yan Fei alone...