Men talk of killing time, while time quietly kills them.

- Dion Boucicault

Kim Jongin finds it funny that it's taken him seventeen years to realize that his time is running out.

And by funny, he means the kind of humor that is cruel;
the type where you start laughing before coming to a halt
realizing that there was nothing funny to laugh at in the first place.

High school was only meant to last for so long, four years maximum, and he feels like he's wasted it all.

So before reality smacks him upon his head, and his last year is up, he plans to make the best out of it.