You and Jeonghan were lovers since high school.

And the time came, him stepping on the last train while saying his goodbyes for you, he's going to study abroad.

He gave you a hug.

"I promise, I'll come back." He said with a smile before leaving.

Years passed, he stopped sending you letters. You thought he ghosted you and hated him for that.

One day, you walked past the bench where you and Jeonghan first met.

And there was written.

"Lee Jeonghan, (1997-2017)"