[Pure friendship + regret + two-way secret love + redemption]
Cheng Man could have lived a good life in high school with the memories of Su Minyou, but the encounter on National Day broke Cheng Man's plan and made Cheng Man mistake Jiang Yuzhi for Su Minyou.
Paper cannot contain the fire, after the truth comes out. Cheng Man's life is already the shadow of Jiang Yuzhi. After high school, Cheng Man deliberately revised his answer sheet for the college entrance examination, and deliberately changed his choice to stay away from Jiang Yu and to see him more often. Jiang Yuzhi received Cheng Man's notes and learned the truth from Li Xiaoxiao. He was sure that he was not Su Minyou's shadow and went to Cheng Man to confess.
God likes to break up lovers, so Cheng Man was diagnosed with stomach cancer before marriage. After that night, Cheng Man left him. They met again in the hospital, and Jiang Yuzhi stayed with her until she grew old.
