Nam Woohyun lives in two worlds. In one world, he is an aspiring actor, an accomplished singer, and a considerate boyfriend, despite his fear of commitment. In the other, he is the caring father of two adorable twin boys who he loves more than anything else in the world, even if he only gets to see them once every two weeks. But when the twins move in with him, his worlds collide and it's up to Woohyun to make sure they don't collapse.