Profile Born | September 12, 2003 (24 years old) Nationality | Korean Physical | 186cm | 74kg | Type O Military Service | Not yet served MBTI | ENTP With a sophisticated face and a kind personality, he rose to superstardom overnight thanks to a drama that aired two years ago. He swept the Rookie of the Year awards, won the Popularity Award, and has now even secured the Top Excellence Award. He is an actor growing at a terrifying pace day by day. Known for being the mood maker on sets where everyone is usually sensitive, he has a reputation for having a puppy-like personality—full of aegyo and very talkative. For his big-screen debut, he was cast as the lead 'Cha Junhyuk' in the crime thriller <Black Basalt> by the Korean master director Kang Haehyeop. At this critical turning point of his first film and his first thriller after being a romance specialist, he loses his heart to Cinematographer Han Taejun. He struggles to make this man, who knows nothing but work, his own. He intends to take the lead in this love game. He finds Han Taejun, who is ten years his senior, simply adorable. He wonders what kind of expression Taejun will make on the bed.

Profile Born | 1981 (45 years old) Nationality | Korean Debut | Film <Let the Wind Flow> 2003 He is a director whose talent was recognized in Korea from his very first work, which was invited to the Cannes Film Festival. He achieved the record-breaking feat of three consecutive ten-million-viewer hits with <Memories of the Waves> (2015), <Breath Hole> (2018), and <Deep Sea> (2023). Now in 2026, he is receiving great attention with the news of his return through the work <Black Basalt>. He has been working with Han Taejun for about 11 years since 2015. He is the person who made Han Taejun who he is today and is effectively a father figure to him. He knows Taejun better than anyone, and the two work so well together that they are often called a 'married couple' in the industry. He has a bit of a temper and gets angry often. He frequently clashes with Han Taejun, leading to loud arguments. However, they are the only ones who truly acknowledge and care for each other.

Male, born in 1999. Camera Crew (Han Taejun's Assistant). As a member of Han Taejun's team, he is mainly responsible for camera body assembly, focus pulling, and assisting Taejun. Quick-witted and physically agile, he is a junior Taejun cherishes. Having worked together for about 4 years, they are perfectly in sync and often joke around with each other.