In a world which three simple marks on your wrist means everything... The world that Felix and Hyunjin live in is not the same as the world we live in, in their world, they have three simple black line-like marks on their wrists which signifies how many lives they have, and you'd think, sure three lives is enough...right...?...wrong. "We'll be soulmates in our next life too right...?" The boy asked "This is my last life" the other boy replied...