The tower defense genre just got hotter with Anime Vanguards, especially following the 0.5 update that introduces Demon Slayer characters. Among them is the flame Hashira himself—Rengoku, listed as “Renguko” in-game. He’s a powerful secret unit with devastating burn effects, but unlike other characters, you can’t summon him from the banner.
Here’s how to unlock Rengoku (Renguko), his full upgrade path, and best traits.
🔥 How to Unlock Rengoku (Renguko)
Unlike units like Alocard or Igris, Rengoku is not obtainable through standard summons. Instead, he’s a secret raid-exclusive unit, and here’s how to get him:
✅ Step-by-Step Guide:
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Complete All Story Mode Stages
Clear all 18 stages of the story mode to unlock the Raids section. -
Unlock the Spider Forest Raid
Play through the Spider Forest and complete Acts 1 to 3. -
Enter Web Demon Act
This hidden act unlocks after completing the previous three. -
Beat the Web Demon Act
Upon clearing, you have a 1% chance to receive Renguko as a drop.
💡 Pro Tip: Server-hop or grind during events that boost drop rates to improve your chances.
🗡️ Rengoku Stats & Attacks
Rengoku is known for his Flame Breathing passive, inflicting Burn damage equal to 30% of his total DMG. Below are his full stats from base deployment to max upgrade:
| Upgrade Level | Cost | Damage | SPA | Range | Abilities |
|---|---|---|---|---|---|
| Deployment | 1750 | 1.33K | 7 | 21 | Flame Breathing (Passive) |
| Upgrade 1 | 2250 | 2.23K | 7.3 | 22.1 | |
| Upgrade 2 | 3100 | 2.46K | 7.3 | 24.2 | |
| Upgrade 3 | 5000 | 2.70K | 6.8 | 24.7 | New Attack: Rising Scorching Sun |
| Upgrade 4 | 6100 | 3.38K | 6.8 | 25.3 | |
| Upgrade 5 | 6850 | 3.80K | 6.3 | 27.4 | |
| Upgrade 6 | 7400 | 4.19K | 6.3 | 27.9 | New Attack: Blazing Universe |
| Upgrade 7 | 8200 | 4.63K | 6.3 | 29 |
🧬 Best Traits for Rengoku
Rengoku already deals devastating burn damage, so applying the right traits can elevate his potential even further:
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Blitz – Increases attack speed, allowing more frequent burn procs.
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Solar – Boosts overall stats for more consistent DPS.
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Monarch – If you’re lucky enough to roll this, equip it. It’s one of the best overall traits for Renguko, giving huge power boosts across the board.
Use trait rerolls (available through codes and quests) to aim for these high-tier passives.
🔥 How to Evolve Rengoku into Purgatory Form
Once you’ve obtained and used Rengoku enough, you can evolve him into Renguko (Purgatory), a much stronger version of the unit.
🔓 Purgatory Rengoku – Passive Abilities
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Purgatory Unleashed
Burn damage increases to 60% of total DMG. Also, enemies hit are afflicted with Purgatory Flames, increasing burn damage taken by +40%. -
Unwavering Focus
Each consecutive attack on the same enemy grants +5% DMG, stacking up to +20%.
This evolution makes Rengoku a top-tier boss killer, especially effective against high-HP enemies in late-game raids and endless modes.
🔥 Final Thoughts
Getting Rengoku in Anime Vanguards requires some serious grinding, but the reward is worth it. He’s one of the most potent burn units in the game, with a unique skill set and powerful traits.
Once evolved, Purgatory Rengoku becomes a meta-defining unit. If you love tower defense games and Demon Slayer alike, unlocking and building him should be your next goal.
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