We exchanged each other's deepest secrets, not knowing that this was just the beginning.
Shen Tingyu, the most lonely "freak" in the school, and Gu Guangyu, the most famous "sun", are two parallel lines that will never intersect.
Until they accidentally read each other's final letter to the future.
From then on, a fragile alliance was quietly formed. They try to uncover the truth behind every "label" in this key high school:
· Why does that athlete who only knows how to train always linger in the underground garage late at night?
· Why is there so much uneasiness in the eyes of that academically dominant girl who is always competing?
However, as they come into contact with more and more secrets, they discover that what connects them is far more than just their current predicament, but also a past that has been deliberately forgotten by everyone.
When the echoes of the past intertwine with the secrets of the present, this youth adventure has long been beyond anyone's control...
A youthful past that begins with "exchange" and ends with "redemption" is about to begin.
Purpose: Our youth should break the shackles of labels