When you've had a long day, all you can wish for is for it to end on a positive note. And that usually implies the person closest to your heart being the last thing you see before you drift off to sleep.

What if you argued with someone, told them that you wished that you'd never met, and woke up the next morning in a world where you're nothing to them?

In which Jaebum hates christmas, Jackson decides to throw a party and that one neighbor is being invited against his will.