Lin Yujia lost her parents at the age of 10 and was adopted by selfish and heartless relatives.When he was 16 years old, he moved to Xu Si's home to study, and the two became good friends.​

Xu Si's warmth healed Lin Yujia's painful past, and Lin Yujia also began to see the loneliness hidden under Xu Si's cheerful personality.​

As graduation approaches and the two prepare to go their separate ways, the feelings they have been silently hiding begin to heat up.