Bamboo Minister

He is a minister of the Land of Bamboo. He is also the guardian of Kae Yukiwari's stepbrother.

Background
The minister had been gathering fifty orphaned children and trained them to become his personal assassins. After many of them died, Hana Kaka was the one of the survivors and selected as the minister's assassin. Ten years after the Fourth Shinobi World War, the minister ordered Hana to infiltrate Konoha and become an Academy teacher.

Personality
The minister is a scheming man who wishes Kae's younger stepbrother to ascend the throne instead of her, even willing to have her assassinated to ensure it.

Kawaki & Himawari Academy Arc
After he was informed of the king's decision to formally announce Kae as his heir, he saw his plans threatened and deployed an assassin against her. However, when the third attempt on assassinating Kae was foiled by Kawaki, with the intel and evidence gathered by Batora Kuromori along with identifying the assassin, the minister was revealed as the mastermind and arrested by Land of Bamboo authorities.