In a youth filled with love and regret, she (he) hid that deep feeling. The heroine has a rough life. After her mother passed away, her father reorganized the family, and her adoptive mother treated her coldly. Campus life is also full of gloom, and bullying follows her everywhere. Until the male protagonist appears, it is like a beam of light that illuminates her world. The two form a deep friendship and go to college together. However, the arrival of a high school transfer student broke the peace. As the hero's childhood sweetheart, she became friends with the heroine, but she caused misunderstandings and buried her love deeply. The male protagonist wanted to express his love after graduation, but he suddenly suffered from a heart disease. In order not to hinder the female protagonist, he silently endured it and left another school. Until his death, the female protagonist was kept in the dark. When she learned the truth three years later, she was already in a new family. This undeclared love could only leave regretful sighs in time.
Intention: Cherish the present and don't leave any regrets