The library after school is very different than it is at lunchtime.
While lunchtime is almost always crowded and lively,
with many students enjoying various activities,
after school is often quiet.
Students still come to read and borrow books, use the computers,
and sometimes play games, but not in such big groups.
So it's a nice place for students to study or read quietly
when they don't have clubs after school.
That said, the library becomes very busy after school during midterm
and final exams, when students are studying very hard.