This is a cheesy love story.
As soon as the handsome male protagonist appears, the female protagonist is attracted by his appearance.
Since then, the heroine has never forgotten the heartbeat of the moment when they met.
A brief heartbeat is like a firework. No matter how amazing it is when you see it, it is always fleeting.
They probably won't meet again, Chi Yu thought.
But the story needs to be cliché after all, so the male and female protagonists will always meet.
Later, Chi Yu met someone again, and he reminded her of a heartbeat at dusk.