Zhu Yuan is the most-missed half of the Two Blade Masters pair, and the fight is a positioning puzzle before it is a damage race. He fills the Sha-Chi Tower bottom with flame walls, and the verified answer is to fight him in the open half of the arena rather than getting pinned in the closed side.
Location and unlock
Zhu Yuan is an optional boss in Pangzhen, Chapter 4, fought at the Sha-Chi Tower bottom. He is easy to walk past: the Pangzhen route lists him as an optional kill in the later block, alongside Xie Qiudong, Chang Hong, and Soulclaimer, and the region guide specifically calls him a True Ending requirement that is easy to miss at the tower bottom.
There is no unlock condition beyond reaching the tower. The practical gate is the Green Serpent House door: once you open the passage to Mirage Estate, the region’s optional content closes.
Reward and missable warning
The drop is Scorching Flames. It is not just a trophy item: the All Tales route uses Scorching Flame from Zhu Yuan and the east Meigu Long Pillar to temper Sanguine Reach into Blazing Edge, the fire weapon required for Yucong’s third phase. That makes Zhu Yuan part of a chain that runs from Pangzhen to Meigu to the Threadbound Great Tree.
Zhu Yuan is also one half of the Two Blade Masters achievement, alongside Bi Feng at the Commander’s Platform. Both are optional individually, both are required for the true ending per the compendium, and the pair is described as the game’s most-missed. The strict flag status is guide-derived rather than datamined, but the cost of skipping is a wasted run.
Fight plan: stay in the open half, dodge the walls
The boss table’s line is “fight in open half; dodge flame walls.” The arena is the fight.
Stay in the open half. The closed side concentrates the flame walls and removes your lateral escape. Start the fight in the open area and re-position after every wall sequence rather than drifting into the corner.
Dodge the flame walls laterally. The walls are line hazards; a sideways step takes you out of the lane, while a backstep keeps you in it. Do not try to block a wall. Once the wall passes, re-enter and punish the recovery.
Reset after the punish. The fight is a repeating wall-and-recovery loop. One short combo, then move to the open side again. Do not chase him into the closed half for an extra hit.
No HP value, phase count, or named moveset is published. Treat the fight as a single-phase arena-control check.
Attack tells
No full colour map or named moveset is published. The documented tells are the flame wall and the open/closed arena split; the rest is universal grammar.
| Tell | Response | Punish |
|---|---|---|
| Flame wall | Dodge laterally, not backward | Re-enter after it passes |
| Closed-side pressure | Reposition to the open half | Do not fight in the corner |
| Blue-flash hit | Parry | Short counter |
| Red-flash hit | Dodge | Do not block or parry |
If a wall spawns on both sides, move to the gap rather than trying to tank one. The arena’s open half is the safe lane.
Recommended weapon and build
Bring a mobile main with a short punish. The fight is about lateral movement and re-entry, so a weapon that commits to a long animation will leave you in the wall lane. A guard-break option is secondary.
No elemental weakness is documented for Zhu Yuan. Do not build around Bleed on an unverified assumption. The best builds guide covers the mobile options for Pangzhen, and the Two Blade Masters pairing is covered on the Bi Feng page.
Common mistakes
- Fighting in the closed half. The walls remove your escape lane.
- Backpedalling the flame wall. Dodge laterally.
- Chasing him into the corner. Reset to the open side.
- Skipping him because he is optional. He is half of the Two Blade Masters true-ending gate.
- Forgetting the Scorching Flames chain. The material feeds Blazing Edge and Yucong.
- Opening the Serpent House door first. The optional window closes.
Sources & confidence
The Sha-Chi Tower bottom location, optional status, Scorching Flames reward, open-half instruction, and flame-wall dodge come from the boss table and the Pangzhen route, which draw on PowerPyx’s played walkthrough and KeenGamer’s boss list. The Two Blade Masters pairing and the true-ending requirement come from the compendium’s achievement section and the Bi Feng page. The Blazing Edge temper chain comes from the All Tales route. No HP value or named moveset is published, so the guide stays with the documented arena plan.
Sources & further reading
- Boss fight guides — AllThingsHow
- All bosses and rewards — KeenGamer
- Pangzhen walkthrough — PowerPyx
- All Tales and side quests — KeenGamer
We link to the primary source for every hard number. If a source conflicts, we say so in the text.
By the PBZ Guide Team · Reviewed by the editorial desk Written in English from primary sources and cross-checked play routes. Spot an error? Tell us and we will update the guide. We link to the primary source for every hard number. If a source conflicts, we say so in the text.