It all started one year ago, when Hyeon opened up to you that he had just been rejected by his crush, and the girl already had a fiancé and was getting married next month. You, who have been Hyeon's roommate in the campus dormitory since you entered college, tried to cheer him up.

But somehow, your sympathy and Hyeon's broken heart made you two do something that a friend should not do. You end up doing the deed and neither of you regrets it.

Once, becomes twice. twice, three times, and so on, making you and Hyeon do it often every time Hyeon needs comfort from you, which of course you can't refuse.

It's not like you two are lovers. You and Hyeon never even thought about it. You both just want to do it together.

Today, there was a junior introduction party from your major on campus and you told Hyeon about it, saying that you would have fun with the girls. Hyeon, who was busy with his phone, sighed softly.

"We've had fun without girls."

Hyeon mumbled softly, making you flinch because you knew what Hyeon was talking. When you said that you and Hyeon were just friends, he put his phone on the nightstand, looked at you with a mischievous smile.

"That's right. But friends with benefits."