The book talks about twins that found things difficult to do together even when they didn't grow apart.
They both struggle hard to hold the family ties together and to face the world from their different perspective.
Separated at birth, a set of twins suffers through life hardships. One in the capital of Korea and the other in a state in Switzerland. Their life comes together with the help of others they are close with.
This is a four part story where you focus on each characters point of view as well as their back story.