- Byakue is the first real boss of Onimusha: Way of the Sword. A hulking white monster clad in talismans, he wields a massive axe.
- The strategy is simple: dodge when he's not swinging, deflect when he is. Counter with Issen on every deflectable attack.
- Difficulty: 2.5/10 on Carnage.
Quick Attributes
| Attribute | Value |
|---|---|
| Type | Boss |
| Order | #1 in game |
| Difficulty (Carnage) | 2.5 / 10 |
| Parry Difficulty | Easy – Medium |
| Phases | Single phase, transitions to Enhanced below 50% HP |
Last verified: 2026-09-04 · Patch 1.0 · Carnage Boss Rematch
1. Boss Overview
Byakue is the first true roadblock you will encounter in Onimusha: Way of the Sword. He is a hulking white Genma covered in talismans — sheets of sacred paper that hang in place of fur across his back and arms. He swings a massive axe with the grace of a lumberjack and the reach of a construction crane.
Design-wise, Byakue is a tutorial boss. Every attack he has exists to teach you one of the three core defensive verbs: dodge, deflect, parry. Learn the rule — dodge when not swinging, deflect when he is — and the fight is over in two clean phases.
2. Attack Patterns
| Phase | Attack | Tell | Counter |
|---|---|---|---|
| P1 | Axe Swing (single) | Sideways chop, slow wind-up | Deflect — Issen on recovery |
| P1 | Axe Combo (2–3 hits) | Repeated horizontal chops | Deflect each, Issen the last swing |
| P1 | Shoulder Charge | Drops shoulder and rushes you | MUST dodge — cannot be deflected |
| P1 | Sprint Charge | Long charge across the arena | MUST dodge (sidestep preferred) |
| P1 | Talisman Hair Lash (Blue) | Whips talismans forward | Press parry button right before contact |
The above table is Phase 1 (100% → 50%). Every axe swing can be deflected, and every deflectable swing can be counter-hit with an Issen. Shoulder charges and sprint charges cannot be deflected — always dodge.
3. Strategy — Phase 1
Byakue's Phase 1 is a clean repetition of one rule: dodge the un-swingable attacks, deflect the swingable attacks, and Issen on the recovery.
- Dodge when not swinging. Shoulder charges and sprint charges have no deflection window. Sidestep and punish the recovery with a quick slash.
- Deflect when swinging. Every axe swing — single or combo — has a generous deflect window. Hold LB and tap A at impact for clean deflects.
- Counter with Issen. Every deflectable attack can be interrupted with an Issen. Use this aggressively on his slower axe swings.
- Handle blue attacks with timed parry. The Talisman Hair Lash glows blue. Wait until the talismans are about to hit you, then press parry right before contact.
4. Enhanced State — Below 50% HP
When Byakue's HP bar drops below half, he enters his Enhanced state. His axe becomes wreathed in Malice (the same red glow that colours Oni energy across the game), and his moveset shifts:
- Malice-wreathed axe swings. Same deflectable timings, but every hit deals more damage if you fail to deflect.
- Ground Slam. He leaps and slams the axe into the floor. Jump right before impact to dodge the shockwave — you cannot deflect this attack.
- Malice pool spew. He vomits pools of red Malice across the arena. These deal ticking damage if you stand in them — sidestep around them and avoid chasing through the puddle.
- All previous attacks remain. Shoulder charges, sprint charges, and the Talisman Hair Lash blue attack are still in the rotation.
The Enhanced state is more of the same — the new moves are well telegraphed and the same dodge/deflect/Issen rule still applies.
5. Recommended Build (1st Playthrough)
Action Difficulty Starter Build
You do not need anything fancy for Byakue. The Charms of Healer and Protection give you safety net for the few hits you will eat on the shoulder/sprint charges, and Fencer's Strength turns your punish windows into real damage. Save the Carnage-only charms (Awakening / Oni Power) for later fights.
6. Rewards
Defeating Byakue grants:
- Souls — yellow soul payout (varies by difficulty; first encounter on Action difficulty awards a smaller pool than Carnage rematch).
- Talisman of the White Oni — story / crafting reagent.
- Progress unlock — story progression and access to the next region.
Exact values to be added once the in-game reward popups have been confirmed at patch 1.0.
7. Common Mistakes
- Deflecting the shoulder charge. It cannot be deflected and will eat your stamina. Always sidestep.
- Standing in Malice pools. Below 50% HP, the ground pools tick damage. Walk around them.
- Not using Issen. Byakue has the largest Issen window of any early boss. Land one per swing cycle and he melts.
- Ignoring the blue Talisman Lash. It looks like a normal attack but glows blue. Treat it as a parry cue.
Source data: PowerPyx — Carnage Difficulty Boss Guide (verified Sept 3, 2026).