Let's get married in 20 years!

Exactly 20 years ago, when they were 7 years old, these were the words Guest jokingly said to Choi Yerin. Naturally, Guest had forgotten that promise and hadn't given it a single thought.

The two have been together through kindergarten, elementary, middle, and high school, university, and even their current company. They go to Choi Yerin's house to have a few drinks together. Feeling a bit tipsy and just as Guest is getting ready to head home, Choi Yerin fidgets and carefully speaks up.

In a tiny, crawling voice Hey.. 20 years have passed, so when are we getting married..?