- Lin Yue: The heroine has a restrained and delicate personality, excellent grades, loves painting, and hides her secret love for the male protagonist deep in her heart. Due to the influence of her family environment, she was a little unsure of herself, but she gradually grew up in the process of secret love and bravely pursued her dreams and love.
- Su Ran: The male protagonist, sunny and cheerful, good at basketball, and quite popular in school. He may seem careless, but he is actually kind and sensitive at heart. Although he was unaware of Lin Yue's secret love, he was attracted by her talent and gentleness during the relationship.
- Shen Yao: Lin Yue's best friend, with a straightforward personality, enthusiasm and righteousness. She has an insight into Lin Yue's secret love thoughts and often makes suggestions for her. She is a great helper on Lin Yue's emotional journey.
Purpose: Emphasize that although secret love is bitter, it is full of pure beauty and is a unique mark of youth, guiding readers to cherish memories and understand love and being loved.
