Goo Jae-hee is a fictional character from the South Korean television series To the Beautiful You. She is portrayed by actress Soo-young Choi. The character is known for her determination and strong will, as she disguises herself as a boy to attend an all-male high school. Her goal is to support her idol, Kang Tae-joon, a high jumper who has lost his motivation. Throughout the series, Goo Jae-hee faces various challenges while maintaining her secret identity. The story explores themes of friendship, love, and self-discovery, making it a popular choice among fans of romantic comedies.