Park Chanyeol, the Happy Virus of EXO-K, was your best friend. He has been your best friend ever since birth. Growing up, he was always that happy kid with the big creepy smile that caused one eye to close a bit more than the other. You, on the other hand, were the opposite. You didn’t smile often and you had troubles expressing your emotions well. Though, through the years of knowing Park Chanyeol he was often there to help you express yourself and show off your true self. Though, there will be always be that one day, the first day Chanyeol got you to open up and be a Happy Virus just like him and you will never forget it. Let us recall that day together…