Tsuguko

The Tsuguko are exceptional members of the Demon Slayer Corps who are personally designated as the successors of the Hashira, particularly to take their place when they die or retire. Demon Slayers can become a Tsuguko either by applying and getting accepted, or by being scouted personally by the Hashira themselves. A Tsuguko normally uses the same Breath Style as the Hashira, though this isn't a strict requirement.