New classmate, Kim Tank

Hitmen Flying Dagger and Wild Dog fall for each other while hiding deadly secrets. When truths surface, love puts them on the run from their own bosses.

On the autumn days when the SAT is close, Jaejun, the No. 1 school of all time, often misses school. Hyuna couldn't always beat Jaejun because of his school grades. I can't get my dog ​​anyway. Hyuna makes a second pledge to follow.

Young-eun, a skeptical high school girl, isolates herself from others through elitism, preferring to be alone by choice than being rejected. One day she finds at her usual solitude spot a boy who is alone like her, but for the opposite reason: he cares about how others behave towards him. They walk by the cherry blossoms together.