For one thing, he did not know where to find the relevant records. For another, there might not even be any relevant information...
This era could hardly compare to the future, after all, when information was readily available and everything could be looked up on a computer.
In an era like this, gaps and missing records were perfectly normal.
So after thinking it over for a while, he decided to leave this sort of thing to the professionals.
After returning to the inn where he was staying, he wrote Ubuyashiki Kagaya a letter, asking him to help investigate the house's history.
For Ubuyashiki Kagaya's family to support an organization that had endured for a thousand years, they surely had help from plenty of other influential groups.
Leaving everything else aside, the Demon Slayer Corps' enormous financial resources alone made it clear that they had people dedicated to earning money. Otherwise, keeping the Corps running would have been impossible.
After sending the letter, Tetsu no Sosuke began making a few inquiries of his own, but he learned very little.
All he found out was that the house had stood empty for a very, very long time before someone finally moved in.
But the man who moved in seemed to have something wrong with his mind, so it was hard to say what connection he had to the house... perhaps he had no connection to it at all.
Still, Tetsu no Sosuke uncovered one interesting detail during his investigation.
The young man had unlocked the large house with a key.
He had seemed so familiar with it, as though he had once lived there.
But no one knew where the key had come from.
Given his condition, he was hardly someone they could have a normal conversation with.
That was where the