From left, actors Jang Yoon-ju, Park Jeong-min and Song Kang-ho pose during a press conference for their upcoming film "One Win," at CGV Yongsan I'Park Mall in Seoul, Monday. Yonhap

Song Kang-ho returns to the big screen in December with Korea's first volleyball film, "One Win."

In the sports comedy film, the "Parasite" star plays Kim Woo-jin, a down-on-his-luck former volleyball player who takes on the challenge of coaching a struggling team.

"While there are many films that delve deeply into life, this one portrays the small victories of our lives through the sport of volleyball. Whether it's regaining one's self-confidence or the process of seeking out a victory, it's a simple yet meaningful and light-hearted story," the 57-year-old actor said, as he explained his reason for appearing in the film during a press conference at CGV Yongsan I'Park Mall in Seoul, Monday.

"After playing a series of intense characters in various projects — 'Uncle Samsik,' 'Cobweb' and 'Emergency Declaration' — I wanted to take on a more cheerful role, one that offered a sense of happiness and simplicity," he added.

The film, directed by Shin Yeon-shick, revolves around a professional women's volleyball team with no chance of victory, consisting of a coach who has never won a game, an eccentric team owner who doesn't want to win and players who don't know how to win. It's a story about their challenge to achieve just one victory.

Shin explained how his first-ever sports film came to fruition, saying that he wanted to create a heartwarming and inspiring film that the whole family could enjoy. "Sports movies have a unique and uplifting power. The idea of proving oneself through blood, sweat and tears seems to resonate with many people," the director added.

The film depicts not a championship, but just a single victory. He emphasized the significance of individual victories over overall championships.

"Many would think people dream of winning championships or becoming absolute champions, but, in real life, I think people live by achieving their own unique, small victories that no one else knows about. I believe the audience will relate to that," the director said.

Park Jeong-min plays the role of Kang Jung-won, a peculiar and attention-seeking chaebol heir, who buys a ragtag volleyball team and hires a coach with a similar background, promising to give them 2 billion won ($1.45 million) if they can win just one game.

Model and actor Jang Yoon-ju plays the 40-year-old captain of the team, Bang Soo-ji, who happens to lead the team simply because she has been in the field the longest among the players. More prone to giving up than continuously striving for success, she ends up taking on unexpected challenges upon meeting this unconventional team owner and coach.

Korean volleyball icon Kim Yeon-koung, along with '90s stars Kim Se-jin and Shin Jin-sik, make special appearances in support of the volleyball-themed movie.

"Several volleyball legends joined our film project, driven by their passion for the sport. We deeply appreciate their contributions," Song said.

The veteran actor emphasized the profound meaning of the film, noting the title "one win" is symbolic.

"I believe that one win can lead to 100 wins or even 1,000 wins. Although the film uses volleyball as a motif, it tells anyone that they can win once and that one win can lead to 100, filling this film with hope," he added.