Seven Knights Re:BIRTH x Demon Slayer: Collab Live Now!

The Seven Knights Re:BIRTH Demon Slayer crossover is live! Discover how to claim free Tanjiro, Nezuko Pet, Zenitsu, Giyu, and Shinobu, plus conquer Upper Rank bosses Akaza and Doma in this complete collaboration guide.

Blades Unleashed: Seven Knights Re:BIRTH x Demon Slayer Collaboration Officially Launches

Netmarble has officially kicked off its massive crossover event as Seven Knights Re:BIRTH joins forces with the global anime phenomenon Demon Slayer: Kimetsu no Yaiba. Running for four action-packed weeks from October 1 to October 29, 2026, this crossover brings beloved anime protagonists, formidable Upper Rank demon bosses, signature armaments, and a legendary pet directly into the tactical RPG.

Inspired by Demon Slayer: Kimetsu no Yaiba The Movie: Infinity Castle Chapter 1, this collaboration bridges Netmarble’s flagship franchise—which has surpassed 100 million lifetime downloads—with Koyoharu Gotouge’s manga universe of over 220 million copies in circulation. Whether you play on iOS, Android, or PC via the Epic Games Store, an enormous feast of content awaits.

Staggered Release Schedule & Banner Phases

The four-week collaboration is divided into two phases to keep the battlefield constantly shifting:

• Phase 1 (October 1): Tanjiro Kamado and Zenitsu Agatsuma make their grand entrance, accompanied by Upper Rank Three demon Akaza as the featured encounter.

• Phase 2 (October 15): The Hashira arrive in force with Giyu Tomioka and Shinobu Kocho, while Upper Rank Two demon Doma steps forward as the final trial.

The F2P Dream: Free Tanjiro, Weapons, and Legendary Pet Nezuko

In an extraordinary move for free-to-play adventurers, all four crossover characters are designated as Special Legendary ("True Special") heroes—and every single one can be unlocked entirely through gameplay without spending a cent.

Players who completed pre-registration receive 10 Demon Slayer Summon Vouchers right away. Tanjiro Kamado is granted simply by logging in during the event period, while Zenitsu, Giyu, Shinobu, four exclusive character weapons, and the adorable Legendary Pet Nezuko Kamado can all be unlocked via event milestones and gameplay activities. Executive Producer Son Geun-hee noted that this generous reward structure was designed specifically to welcome both returning veterans and brand-new anime enthusiasts into the world of Seven Knights Re:BIRTH.

Meet the Demon Slayers: Combat Kits & Archetypes

Each hero’s kit faithfully mirrors their signature fighting styles and breathing techniques from the series:

• Tanjiro Kamado (Attack / Comeback Dealer): Built for clutch victories, Tanjiro unlocks hidden potential as his HP plummets. Surviving lethal pressure triggers massive boosts to both offensive output and defensive resilience, turning him into a late-fight cleanup monster in both PvE and PvP arenas.

• Zenitsu Agatsuma (Attack / Single-Target Burst): Embodying pure lightning, Zenitsu focuses on single-target crowd control and catastrophic burst damage. His skill kit allows him to unleash rapid, chained single-target strikes with Thunderclap and Flash, instantly neutralizing priority threats before they can act.

• Giyu Tomioka (Universal / Balanced Ramp-Up): The Water Hashira thrives in prolonged skirmishes. Giyu generates dual offensive and defensive stacks whenever he attacks or absorbs enemy hits, eventually entering an empowered stance backed by tremendous passive damage reduction.

• Shinobu Kocho (Magic / DoT Poison): Rather than relying on raw upfront burst, the Insect Hashira systematically dismantles enemy lines through stacking, lethal poisons. Her Dance skills inflict unique venom effects engineered to resist standard debuff cleanses.

Conquering the Infinity Castle: New Modes & Boss Raids

Adventurers looking to test their tactical prowess can dive into tailored collaboration modes:

• Hero Trial Stages: Experience unowned crossover heroes firsthand with dedicated trial gauntlets. Weeks 1 and 2 highlight Tanjiro and Zenitsu, while Weeks 3 and 4 shift the spotlight to Giyu and Shinobu.

• Upper Rank Boss Raids: Battle Akaza across Weeks 1 and 2, followed by Doma in Weeks 3 and 4. Each encounter features four scalable difficulty tiers offering escalated currency rewards for clean clears.

• Trial of Infinity: A specialized tower-climbing mode reminiscent of the Tower of Trial. Adventurers must ascend the floors, facing Akaza on Floor 5 before confronting Doma on Floor 10.

• Dynamic Collab Lobby: To immerse players further, the game features a custom crossover lobby with a dynamic day-and-night cycle synchronized directly to your device’s local clock.

Strategic Progression Checklist

To walk away with every limited-time reward before the event concludes on October 29, maintain consistent daily logins to secure Tanjiro and keep your resource generation steady. Run the Trial Stages to familiarize yourself with each hero’s kit before committing upgrade resources, and systematically clear the daily event challenges to guarantee the acquisition of all four exclusive weapons and the Nezuko pet.

Level Up Your Adventure

The Seven Knights Re:BIRTH Demon Slayer collaboration anchors the early progression of the update, especially for players investing in new characters. Travelers aiming to accelerate ascension farming can explore trusted Seven Knights Re:BIRTH Accounts, optimize resin/stamina efficiency with expert Seven Knights Re:BIRTH Hourly Services, or secure consistent boss clears through reliable Seven Knights Re:BIRTH Boosting as farming rotations intensify.

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