Kaiu Shirai is a Japanese manga writer best known for co-creating the popular series The Promised Neverland. Born on May 20, 1990, he began his career in the manga industry and gained recognition for his unique storytelling and character development. Shirai collaborates with artist Posuka Demizu, who illustrates The Promised Neverland. The series, which debuted in 2016, quickly became a critical and commercial success, winning several awards and being adapted into an anime and live-action film. Shirai's work is noted for its suspenseful plots and emotional depth.