The short answer
Genma are monstrous fiends that spill from hell into the human realm through portals when Malice overflows. The Oni guard those gateways. Shuten Doji is officially described as a colossal Genma using Mount Oe as his stronghold; this is not a complete enemy list.
What Genma are in this story
Director Satoru Nihei says Genma dwell in the depths of hell and enter the human realm through portals when Malice overflows. The Oni guard the gateways and destroy Genma that try to cross.
Sources for this section
- PlayStation Blog / Capcom interview: Director interview: Break Issen and updated PS5 demo · Checked 2026-09-20 · Published 2026-08-25
Shuten Doji at Mount Oe
Capcom calls Shuten Doji a colossal Genma who has taken Mount Oe as his stronghold. The announcement questions whether his claim to be the legendary Oni is true; this page does not resolve that story question.
Sources for this section
- Akihito Kadowaki / PlayStation Blog: Capcom producer: original PS5 announcement and combat overview · Checked 2026-09-20 · Published 2026-06-02
Bestiary limits
The reviewed sources do not provide a full Genma roster, weaknesses, attacks, drops, respawn rules or retail encounter order. A trailer name or visual is not enough for a strategy; those fields need current gameplay evidence with platform, build and date.
Sources for this section
- Akihito Kadowaki / PlayStation Blog: Capcom producer: original PS5 announcement and combat overview · Checked 2026-09-20 · Published 2026-06-02
- PlayStation Blog / Capcom interview: Director interview: Break Issen and updated PS5 demo · Checked 2026-09-20 · Published 2026-08-25
Your checklist
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Research checked 2026-09-20. This is a source-based guide; Kingy has not independently play-tested these steps. Evidence and coverage.