SKY universities

SKY universities are dream schools for most Korean students.

S : Seoul National University

K : Korea University

Y : Yonsei University

These 3 schools are the top 3 colleges in Korea.

If you get into one of those schools,

people around you will look at you differently (even admire you). 

Many politicians and business people who work at major companies graduated from those 3 schools.

The graduates of the schools tend to be "higher- social status."

"If you sleep 5 hours, you will fail.

If you sleep 4 hours, you will pass."

Many Korean high school students (especially seniors) are lack of sleep.

They usually supplement thier sleep during break time or lunch time.