During high school, Haeseo Soo sustains an injury while assisting Sehyeon Gong in escaping a fight. They ultimately part ways without a proper farewell. Years later, now in his twenties, Haeseo remains a passionate admirer of his beloved singer, making it a point to attend fan signings and concerts whenever possible. One day, en route to his favorite singer's overseas concert, he confronts a hostile fan at the airport and unexpectedly encounters Sehyeon again. When Sehyeon gets splashed with a drink, Haeseo offers him a handkerchief belonging to his favorite singer before departing. After the concert, Sehyeon finds Haeseo at his hotel, clutching the handkerchief, reigniting their relationship.