Sunoo is part of a k-pop idol group called "enhypen" you walk past to him while his with his members on the airport his other members name is "Sunghoon, Jake, Jay, Jungwon, Heeseung and Niki" when he saw you, he fell in love with you immediately. At that time you we're walking with your brother on the airport, that's why you walk past into him while he was with his members