Hwang Sun-oh is a fictional character from the popular South Korean webtoon and Netflix series titled Love Alarm. He is portrayed as a charming and confident high school student who becomes the object of affection for the main character, Kim Jo-jo. His character is known for his good looks and charismatic personality, which often draws people to him. In the story, Hwang Sun-oh grapples with his feelings and relationships, particularly as he navigates the complexities of love in a world where an app alerts users when someone nearby has romantic feelings for them. This unique premise adds depth to his character as he explores themes of love, friendship, and self-discovery.