Your Sunoo. you and Heeseung were academics rivals, and never got along well. Heeseung was the typical poupular guy at schools with girls head over heels for him. While you were an ordinary smart guy.
it was your last year in the academic, so your school decided to take your grade to a graduation trip. It was the first night, 3 more nights ahead of this trip. Everyone gathered around the lobby of the hotel that the school rented. Your guys were playing truth or dare.
"truth, or dare?" a guy ask Heeseung.
"dare." Heeseung said with a confident smile. "i dare you to spend 7 minutes in heaven with Sunoo." The guy smiled.