On September 14, Seven Knights Re:BIRTH (hereafter referred to as SKRB) dropped a video titled May's Emergency Breaking News. MC Oh Sung-kyun, Kim Hyo-jin, and SKRB producer Son Gun-hee appeared to share details on the fresh collaboration event.

The collaboration partner is the Japanese manga-adapted anime Demon Slayer: Kimetsu no Yaiba the Movie: Infinity Castle. The protagonist Kamado Tanjirou, along with fellow companions Agatsuma Zenitsu, Tomioka Giyuu, and Kochou Shinobu, will appear as collaboration characters.

This collaboration kicks off on October 1, rolling out Kamado Tanjirou and Agatsuma Zenitsu in the first update, followed by Tomioka Giyuu and Kochou Shinobu in the second update on October 15. The Upper Rank characters from the Infinity Castle arc will appear as bosses, with further news to be revealed in upcoming content.

The protagonist Kamado Tanjirou steps in as a special legendary hero, handed out to all players as a login reward starting October 1. The other three characters are also planned to be distributed for free. Kamado Nezuko, one of the core figures of Demon Slayer, arrives as a legendary pet.

Alongside the information reveal, pre-registration event news was also announced. You can pre-register via the QR code in the image below or through the Seven Knights Re:BIRTH official website. The reward is 10 Demon Slayer Summon Vouchers. Detailed collaboration information is scheduled to be rolled out sequentially through the official community, YouTube channel, and social media.