Hero Mask (stylised: HERO≠MASK) is a Japanese original net animation produced by studio Pierrot for the streaming service Netflix. The series is written and directed by Hiroyasu Aoki, and premiered worldwide on December 3, 2018. A second season premiered on August 23, 2019. Set in a fictional version of London. James Blood is a hot-blooded officer working for the elite "Special Service of Crime" (SSC) division within the Capital Police Department. Sarah Sinclair is a subordinate to Crown Prosecutor Monica Campbell, who witnesses her suddenly drop dead while working on a high-profile case involving the LIVE Corporation. Shortly thereafter, the police station is attacked by an enemy James thought long dead. James ends up teaming with Sarah to uncover the perpetrators behind these events, dragging them into a conspiracy involving LIVE, escaped prisoners who supposedly died years ago, and masks that give their wearers superhuman abilities.