On January 3, 2026, the highly anticipated first episode of Sentenced to Be Hero: The Prison Records of Penal Hero Unit 9004 premiered, which has caused a sensation among anime fans. With a runtime of one hour, the series has received very positive reviews, achieving an almost perfect score of 4.9 out of 5 on Crunchyroll and an 8.8 out of 10 on IMDb. The production, led by Studio KAI, a relatively unknown studio on the international scene, manages to stand out thanks to its striking visual proposal and an intriguing plot that combines elements of dark fantasy, demons, gods, and heroes.
A success on social media
The narrative of Sentenced to Be Hero follows Xylo, a hero forced to fulfill his destiny after being condemned for a crime he apparently did not commit. His mission is to confront the fearsome Demon Kings, who pose a threat to humanity. This focus on an anti-hero protagonist, similar to works like Chainsaw Man and Deadman Wonderland, adds a dimension of redemption and complex morality to the story. Since its first preview, the series has captured attention for its stylized art and horror elements that were highlighted by critics like Chema Mansilla.
The reactions on social media have been unanimous in expressing the excitement generated by the premiere, with comments highlighting the quality of the animation and the development of the plot. “I didn’t even feel like an hour had passed. The actress Mayu Iizuka recalled that the second episode will air on January 15. With so much buzz around it, Sentenced to Be Hero seems to be among the best animes of 2026, just as the year is beginning.