To unlock Flame Breathing in Slayers 2, reach level 25, bring 10 Demon Horns, complete the training exercises Rengu assigns, and defeat the Flame Trainee. Rengu is described as being at a house near the red bridge in Mistfall Village; another route places him south of Forgotten Ruins, beyond a long bridge and the Rengu boss. The reported Wen cost is disputed, so check Rengu’s current dialogue before farming or spending it.
Where is Flame Trainer Rengu?
Look for a house near the red bridge in Mistfall Village. The Slayers 2 Field Guide and Slayers 2 Wiki use that landmark. Roblox Den describes a route south of Forgotten Ruins: cross a long bridge, pass the Rengu boss, then look for the trainer behind a house along the road, on a lower roof near stone spikes. Those descriptions may refer to different route cues; use the live trainer marker if the map or landmarks have changed.
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Sources: Roblox Den’s Flame Breathing guide, Slayers 2 Field Guide, and the Slayers 2 Wiki.
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What are the requirements for Flame Breathing?
Current third-party guides consistently report level 25 and 10 Demon Horns. The Wen requirement is not consistent: Roblox Den lists 6,000 Wen, while the Field Guide says additional Flame costs are not established. These are guide-reported values, not requirements confirmed on an official live requirements page.
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| Requirement | What current guides report |
|---|---|
| Level | Level 25 minimum, reported by Roblox Den and the Slayers 2 Wiki. |
| Demon Horns | 10, reported by Roblox Den, the Slayers 2 Field Guide, and the Slayers 2 Wiki. |
| Wen | Roblox Den reports 6,000 Wen; the Field Guide says other Flame costs are not established. Confirm the current amount in Rengu’s dialogue. |
Check the trainer’s prompt before farming Wen: that is the safest way to avoid relying on a figure that current guides disagree about.
How to complete the Flame Breathing unlock
Reaching level 25 or finding Rengu alone does not unlock the style. The reported quest chain includes the assigned exercises and a final fight.
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- Reach level 25 and travel to Rengu.
- Speak with him and review the current material requirement, especially the disputed Wen cost.
- Complete the assigned exercises. Roblox Den lists meditation, push-ups, boulder split, aim training, and cup training; it says these exercises take place at Butterfly Estate.
- Return to the area by Rengu’s house and defeat the Flame Trainee, reported to be nearby.
- After the fight, check your style or skill tree to confirm Flame Breathing has unlocked.
The detailed exercise list and the trainee encounter come from Roblox Den; the Field Guide describes the broader sequence as trainer dialogue, exercises, trainee encounter, then unlock.
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The listed Flame moves are Unknowing Fire, Blazing Universe, Flame Undulation, Flame Tiger, and Purgatory. Roblox Den lists keyboard bindings Z, X, C, V, and B in that order. Bindings can change between versions, so use the in-game skill tree if the keys differ.
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The Slayers 2 Wiki characterizes Flame as farming-oriented, with wide burning arcs and a slower startup in PvP, and names Rengoku as the matching clan. Treat those as guide descriptions rather than measured or universal rankings.
Is the Flame katana required?
No reviewed unlock walkthrough identifies a Flame katana as a requirement for Flame Breathing. The fan wiki claims the Flame trainer boss can drop one at a 5% rate and that it can be forged into the Volcanic Katana at level 65, but the other reviewed guides do not corroborate that drop claim. Consider it optional gear information, not part of the reported breathing-style unlock.
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How certain are the location and cost details?
The most detailed current walkthrough is Roblox Den’s guide, published September 28 and updated September 29, 2026. The Slayers 2 Wiki was updated October 4, 2026, and the Field Guide also provides current route and material-planning information. All are third-party guides; none is an official live requirements page. Their agreement is strongest on level 25 and 10 Demon Horns, while the Wen amount and route descriptions vary.
An official-channel Flame showcase listing from Ouw Productions, dated August 20, 2026, confirms a gameplay showcase rather than the unlock requirements: Ouw Productions’ Flame Breathing Showcase listing.
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