Synopsis
Dong Woo is a kind, dependable, and upbeat boy. He experiences strange sensations whenever he opens his closet door, and he is the only one who can sense them. Why is this? Dong Woo is fated to become "the one who opens the Door." His closet serves as a hidden passage linking the real world to a fourth-dimensional realm known as "Uniland." Every time he opens the door, the wavelength from that other world flows into him.