Thus, Reiger was invited by Rengoku Kyoujurou and stayed at the Rengoku residence.
The Rengoku residence, generation upon generation a family of Ghost Hunters, is essentially top secret, with connections to the Demon Slayer Corps that have withstood the test of time, earning the deep trust of the Ubuyashiki family. Hence, the distance between the Rengoku residence and the Ubuyashiki estate was not far, even situated within the same town.
Reiger began to suspect that the town was specifically intended for Ghost Hunters and those greatly associated with them since several Pillars also entered the area after their dispersal, disappearing without a trace, likely having their own homes here.
If that was indeed the case, then the wealth of the Ubuyashiki family must be even greater than Reiger had imagined, to build an entire town for habitation, showcasing their significant financial strength.