The animation is deliberately unfinished, storyboard-level rough. It doesn't matter. These six vignettes live inside Dorohedoro's world in ways the main series never quite captures, building out the texture of how people actually live under the Hole. The show trusts you to already love these characters enough that watching them just exist, arguing over food, dealing with mundane violence, refusing to be anything but themselves, becomes the whole point. This is pure fan service that earns it by understanding what fans actually want: more time in a world this detailed, even if nothing changes. Only works if you've already fallen for the series.
Dorohedoro's darkest corner gets even messier in this supplemental episode that stitches together the manga's most unhinged bonus content. Rather than continuing the main narrative, this OVA pulls six standalone segments from the original source material, each one a absurdist detour into pure chaos. Expect the series' signature blend of grotesque body horror and pitch-black comedy cranked up without restraint. Characters find themselves in ridiculous, grotesque situations that range from genuinely disturbing to laugh-out-loud ridiculous, sometimes simultaneously. The pacing jumps between vignettes keeps you off-balance, exactly as intended. If you've made it through the main series, you already know what kind of weird you're signing up for here. This isn't essential plot material, but it captures the manga's raw, unfiltered sensibility in ways the main anime sometimes softens. It's pure bonus content for people who want to sit in Dorohedoro's filthy world a little longer and don't mind when things get truly strange.