In this mood sampler video released on September 14 KST, Key walks on a lonely planet by himself, surrounded by a sandy landscape with a pinkish color. Then he discovers cages with extraterrestrial life forms locked in them in this interesting clip.
Just previously, Key released an introductory video and a scheduler for his solo comeback.
Check out the mood sampler above, and stay tuned for more. Key's first mini-album, 'BAD LOVE,' will be released on September 27 KST.