Kibum and Jonhyun have been living together for two years now. Kibum, also known as Key, is the proud owner of a small cafe at the edge of Seoul, while Jonghyn is a music instructor for anyone willing to learn. When Kibum finds a dirty brown kitten in a dumpster behind his cafe, how will the little furball change their lives forever? 

After 3 years of waiting, 3 years of watching them take off into the night without him, Taemin will finally be able to join his hyungs as a Windwalker.