Who Are You? (2002 Film)
Who Are You? (Korean: 후아유; RR: Huayu) is a 2002 South Korean romantic comedy film directed by Choi Ho. The film explores the intersection of virtual reality and real-life relationships, focusing on two individuals who unknowingly interact through an online dating game.

Plot
Hyung-tae (played by Cho Seung-woo) is a dedicated game programmer working in a high-rise office building in Seoul. He is under significant professional pressure to ensure the success of his company's new online dating game. His work is complicated by a beta-test user with the handle "Byulee," who frequently criticizes the game's mechanics.
In-ju (played by Lee Na-young) is a former competitive swimmer who works at the Sea World aquarium, performing as a mermaid. Unbeknownst to Hyung-tae, In-ju is the person behind the "Byulee" account. As Hyung-tae attempts to win over his harshest critic by using his own online avatar, "Mello," the two characters develop a deep connection online. The narrative follows their evolving relationship as the boundaries between their virtual personas and their real-world identities begin to blur.

Cast
The film features a central cast of four primary characters:
- Lee Na-young as In-ju (Byulee)
- Cho Seung-woo as Hyung-tae (Mello)
- Jo Eun-ji as Bo-yeong
- Lee Jang-won as Nam-hoon



Production
The film was directed by Choi Ho and written by Kim Eun-jung. It was released in South Korea on May 24, 2002, with a total runtime of 103 minutes.