YOASOBI has decided to premiere the music video for their new song “Kaibutsu” on YouTube at 22:00 on Wednesday, January 13, 2021. “Monster” is based on the completely new novel “Push Your Ear to Your Chest” by Paru Itagaki, the original author of “BEASTARS.” The novel can be read on the anime’s official website “MUSIC” tab.