The eighth tea master, Masayasu KOBORI, was the son of the sixth tea master Masahisa KOBORI, and he was young when the Kobori family was dismissed; however, in 1828 he was welcomed as a direct retainer of the shogun or a Kobushin-gumi (samurai without official appointments who receive small salaries) with a fief of 300 koku, whereupon the utensils that had been passed on to a new family were recovered and the house of Kobori restored.
8世正優は6世正寿の子で、幼少の頃に小堀家が改易されたが、文政11年（1828年）に300俵小普請組の旗本として迎えられ、親族へ引き渡されていた伝来の道具なども戻して本家を再興した。