In the new class after the second grade of high school, the introverted and ordinary Su Wan accidentally noticed the cool and dazzling top student Lu Shiyan, and secretly fell in love with him. She thought that this heartbeat was just a one-man show that no one knew about, but she didn't know that the taciturn Lu Shiyan had already been attracted to her gentleness, delicateness, and silent hard work.
The two never met as strangers, but gradually developed a bond due to seat adjustments, mutual learning, and daily trivial matters. The inadvertent glances, the silent favoritism, the clumsy concern, hide the two-way caution. During the boring and busy time of high school exam preparation, they accompanied each other, healed each other, and slowly healed their respective sensitivity and loneliness. From secret love to two-way love, they finally rushed to each other's summer and future, becoming the most precious light in each other's youth.
Intention: Use heartbeat as light and grow together with each other.