The story begins when a class went to a vacation trip, and on their way back their plane had some trouble and ultimately crashed. Winter along with her classmates and some civilian passengers miraculously survived. The only problem was, they crash landed in an unknown island. Treading along the mysterious island, somehow, Winter also has to navigate her feelings. When without any warning, Karina; the most popular student at their university gave unsuspecting Winter a kiss.   

in the middle of a war between humans and machines, taeyong lives with a heart of steel.

            They need to complete the missions to survive. But in order to complete the missions, they must sacrifice their close one – their own classmates.

They woke up trapped in a maze The only way out is to find her in the center of it all Only the first six can accomplish this misson. The other six will have an undetermined fate.