In the sophomore campus of City No. 1 Middle School, the cold and solitary Omega student Li Xihe is the white moonlight that is out of reach in the school. He always lives alone and lives in his own world. The enthusiastic and bright Alpha boy Yang Qingting is the lively and dazzling campus sun. It seems that he and Li Xihe are two extremes that have no intersection.
No one knew that Yang Qingting had been attracted to Li Xihe, who was weak and quiet, and endured all the grievances alone, from the first glimpse of her in the first year of high school. Due to the strange distance between the two, the huge difference in the eyes of others, and the youthful cowardice of young people, he did not dare to approach directly, let alone reveal his feelings.
By chance, he discovered that no one was using the abandoned mailbox in the school's old teaching building, and he began a long period of writing letters anonymously. Using a blank piece of paper as a medium, he wrote the heartbeat, daily thoughts, and careful concerns that he dared not express out loud into the letter word by word, and quietly stuffed it into Li Xihe's desk.
The lonely Li Xihe had no troubles in her desolate youth, but because of the unsigned letters, she felt the warmth of being remembered, favored and understood for the first time. Those tender and detailed words soothed the loneliness and sensitivity caused by his native family and became the only light in his gloomy life.
He was addicted to this secret tenderness, waiting for letters day after day, secretly feeling attached to the letter he had never met. He guessed the other party's identity countless times, but never connected the dazzling and passionate Yang Qingting with this delicate and gentle preference.
The two passed each other time and time again on campus, and their occasional brief encounters concealed Yang Qingting's restrained tenderness and Li Xihe's secret heartbeat. The secret attraction of pheromones, the subconscious following of eyes, and the inadvertent two-way favoritism, quietly breed in corners where no one notices.
With coincidences and trials one after another, the truth hidden behind the letters gradually emerged. When the anonymous thoughts were exposed, the two lonely teenagers finally shed all their cowardice and pretense, caught each other's youth and tenderness, and turned a letter into a long journey year after year.
Concept: The secret love in letters that no one knows about, the preference hidden in the pages