Kôsuke Mukai, born on January 17, 1977, in Tokushima, Shikoku, Japan, is a Japanese screenwriter and director known for his thoughtful and character-driven storytelling. He has made significant contributions to Japanese cinema through his work on both films and television.

Mukai gained early recognition with No One’s Ark (2003), followed by the popular coming-of-age film Linda Linda Linda (2005), which centers around a high school girl band preparing for a cultural festival. These works showcased his talent for capturing the nuances of everyday life and youth culture with authenticity and humor.

In 2022, Mukai’s screenplay for A Man received critical acclaim, further cementing his reputation as a versatile and accomplished writer. His body of work reflects a keen understanding of human relationships, making him a respected figure in contemporary Japanese film and television.