Kaiu Shirai is the pen name of a Japanese manga artist and writer, renowned for the creation of the manga series The Promised Neverland. The true identity and the precise date of birth of the individual behind this pseudonym remain undisclosed, preserving an air of mystery around the author. Their profound impact on the manga community is indelibly tied to their collaboration with the talented artist Posuka Demizu, with whom they brought the world of The Promised Neverland to life.