
Heizou Hasegawa
main character


The historical novel series depicts Heizou Hasegawa, who metes justice on wrongdoers and supervises the crackdown on arsonists and robbers in Japan's Edo period (1603-1868). (Source: Anime News Network)
Probably, if you enjoy drama, especially stories with historical, episodic, swordplay.
Reception is positive but mixed: 68/100 on AniList, with 37% of 3.4K ratings at 8/10 or higher. It's the #73 highest-rated anime of 2017.
15.7% of viewers drop it before the end, more than most, so give it a few episodes to see if it clicks.
Watch Onihei: Sono Otoko, Heizou Hasegawa first: this continues its story.
At about 4 h 59 min in total, it is a short commitment — a weekend binge.
Availability, audio and subtitles vary by region and service.
13 episodes are listed.
Theme data from AnimeThemes.moe.
ONIHEI has 13 episodes of about 23 minutes each, roughly 4 h 59 min in total.
About 4 h 59 min back to back. At two episodes a day it takes 7 days; at one hour a day, about 5 days.
Yes. ONIHEI has finished airing — the final episode aired April 4, 2017.
No sequel is listed for ONIHEI as of October 2026.
Watch Onihei: Sono Otoko, Heizou Hasegawa first — ONIHEI is a direct sequel.
Yes. ONIHEI adapts the other source by Shoutarou Ikenami.
ONIHEI was animated by Studio M2 and directed by Shigeyuki Miya.
The opening, "Onihei: Edo wo Hashiru", is performed by an uncredited artist.
ONIHEI is listed on Amazon Prime Video, Crunchyroll. Availability varies by region — check the streaming links on this page.