fortis est veritas. 

Donghae and Aiden are twins that bear one secret they must never tell anyone. They are divided shells that share the same mind and heart, connected in a special way. They can talk to each other voiceless but clear, even if they are placed in the crowds of millions. But then a certain event caused by adult’s selfishness separated them, cutting the special connection they thought they have no matter how many miles splits them.

Their parents promised them they could meet each other again once they turn sixteen. The hope crashes down when Donghae learns that his twin went missing.

To find the truth behind his twin’s disappearance, Donghae transfers to his twin’s high school. There he meets four peculiar people that unexpectedly, just make things a little bit more like a roller coaster ride.

The thing is, he hates rides.