It is year 3100 and twelve candidates are chosen to take a 2-year assessment program. The breaking of contracts are void and once the paper is signed, there is no turning back. These nine candidates will be starting in six different rooms and may switch rooms accordingly to their desire but only if they figure out the riddles. However, there are simple rules to follow:

What happens when South Korea collapse from a demon apocolypse? The EXO members are the only survivors, or so they say. They work together to fight the contamination. (Read more to find o