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Hero Mask

Now there's a mysterious Mask before James Blood, and the man behind it is one that shouldn't exist. What is the mystery surrounding this mask...? So begins an action-packed crime story set in a beautiful city!

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Type: ONA

Date aired: Dec 3, 2018

Status: Finished Airing

Genres: Action , Sci-Fi , Mystery , Police

Scores: 6.34

Premiered: FALL 2018

Duration: 24m

Episodes: 15

Studios: Studio Pierrot

Producers: Sentai Filmworks , Studio Pierrot , Sotsu , Netflix