On the school trip to a camp, you and your colleagues decided to make a Talent show, and it was all really fun, until your boyfriend, Seojun, sang the song 'Starlight' since he was a ex-trainee... you didn't know the story behind the song was because of his dead best friend, when Seojun and Suho, his enemy and also your bestfriend's (Jukyung) boyfriend, were also best friends and they fell apart because Seojun blamed Suho for Seyeon's death.

After he sang the song, Suho wasn't there anymore, and neither was Seojun. When you look for Seojun, you find him in a bathroom cabin, sobbing a lot, and you also heard some sniffs coming from there