To get through the difficulties before them, Su Nian and Lu Chenyuan make a one-year deal, and Su Nian moves into his home.
Carrying years of secret affection, Su Nian keeps his distance, focuses on studying for his exams, and reminds himself that he has to leave in a year.
But as they spend day after day together, Lu Chenyuan’s thoughtful care slowly shakes his resolve.
Lu Chenyuan appears calm and composed, but at night, he lies awake, haunted by the feelings Su Nian keeps hidden, agonizing over who Su Nian secretly likes.
The lily-of-the-valley sketch from their youth holds a love that has spanned seven years. The agreement is only an excuse. This reunion was always a long-planned rendezvous in the midst of his years-long secret love.