Takechiyo is the young lord of the Mamidaira, a tanuki high clan which Hachiemon is a servant. Due to family feud, he had to leave his home to be left with Jyūbei by Miroku at the behest of his companion Hachiemon. Now works at Jyūbei's Shikabaneya which trades demons' corpses and secures contracts for bounty hunting.

(Source: Inuyasha Wiki)