Ryoju

Hida Ryoju was a prominent Crab general who became the ronin Ryoju.

General
Ryoju was a general appointed at the Kaiu Wall until a Maho-tsukai tricked him into murdering his own Lord. He considered seppuku, but was persuaded instead to take a post at Otosan Uchi. He left behind his family sword, becoming ronin.

Ronin
Ryoju was a wealthy and popular samurai of the Karada district, but his habits were lavish, so he quickly depleted his fortune. He lost all but a field, where an old and wilted single tea plant remained, soon to die. The place was considered haunted and during night the soul of his ancestor told him to dig at the roots of the plant. Ryoju found the blade he had left, and angered he attacked the spirit which vanished.

Tea House
Ryoju put the katana back into the earth. The next day the tea plant had bloomed and the field flourished, which would be known as the Field of Sharp Returns. Ryoju opened a tea house where he served his legendary tea, alongside the young Miharuko.