Key is missing and as his lover and detective, it's Minho's job to find him.

Minho promised to make kimchi stew for Kibum every morning and accompany it with a song. He promised to do it forever.  

Destiny and Fate go hand-in-hand. Fate constantly changes to make sure Destiny's end results are met but sometimes, Fate makes mistakes. 

Jonghyun is marrying Jessica. Key isn't the only one that doesn't take it well.

Three years later, Key finds himself at McDonalds with Bae and old friends; remembering his painful past. 

 Love. It’s a complicated thing that people yearn for. Everyone wants to ride off into the sunset with ‘The One’, even if they’ll never admit it. Key wants that but he doesn’t dwell on it, dance being his first priority. In fact, Key hoped ‘The One’ didn’t show up until after he was an adult and had a successful career as a choreographer. He didn’t want distractions. W

Key just wants happiness; for him and for his son.