As a boy, Chu Huai was naughty and mischievous, and was recognized by his teachers as the most troublesome student.
When he was in high school, he got even more mischievous and was deprived of the right to have a deskmate by his high school teacher.
One day, he was scolded by his class teacher for scribbling on the school badge. A young man broke into his class and he accidentally learned that the boy's name was Nan Shu. However, Chu Huai didn't take it to heart at the time, and the next day he found out that this sickly beauty had become his new deskmate.
While getting along, he and Nan Shu had a secret affection for each other. Because of Nan Shu, Chu Huai learned to restrain his sharpness and take care of others.
But when their relationship was discovered by his parents, Chu Huai found that he was the only one willing to stick to the relationship from beginning to end. Nan Shu also accepted his mother's arrangement and left the country, and never heard from her again.
Chu Huai felt that he had been scummed, and spent seven years trying every means to forget Nan Shu.
But after they reunited, his uncontrollable heartbeat told him the fact that he still couldn't forget Nan Shu...
Intention: Reunion after breaking the mirror