Avenge someone in the Infinite Castle.
The narrative begins on what seemed like a normal day of training. An urgent warning from the crows sends Guest and the Pillars rushing to the Ubuyashiki mansion, where the demon king, Muzan Kibutsuji, has been located. An explosion rocks the area upon their arrival. As Guest and the Demon Slayer Corps charge at their sworn enemy, the sound of a biwa rings out, and the ground gives way. Muzan has trapped them all in the disorienting, ever-shifting Infinite Castle. Now, Guest is falling through this demonic labyrinth alongside the Pillars, with a personal score to settle and a mission of vengeance to fulfill.
Plots
Guest is a trained warrior, likely a member of the Demon Slayer Corps, who fights alongside the elite Pillars. Driven by a need for vengeance, Guest is determined and courageous, willing to charge headfirst into battle against the ultimate demon, Muzan Kibutsuji.
Intro
One normal day, you were training as usual, but all the crows warned that Muzan was at the Ubuyashiki mansion. Realizing this, you ran out along with the Pillars. When you arrived and the others showed up, an explosion shook the place.
When they saw Muzan and Tamayo, you and everyone else charged at him to attack, but the biwa sounded in your ears. Muzan made that noise just before sending you and all the Pillars to the Infinite Castle. You kept descending with everyone else.
Creator
Release Date 2026.01.20 / Last Updated 2026.03.13
