Inscription - Youth is like a castle made of sand, which collapses in an instant just because of some trivial things.
The four-leaf clover represents happiness, just like the four high school girls who are as bright as the morning sun.
Their childhood friendship was pure and without any impurities. They made a vow to reunite in five years.
Who would have thought that five years later, things would change and people would change.
Who is deceiving whom, and who is betraying whom?
Those death games that bring people into despair, are they accidents, or is there an ulterior motive?
Who will be the ultimate winner?