Hāto

Hato was a former student of En no Gyōja and the father of Shiranami.

Background
Hotaru has stated that Hato was very skilled with ninjutsu. He later passed on his teaches from his teacher on to his son, who was even more skilled than Hato. Hato died during the Third Great Shinobi World War trying to protect the Tsuchigumo clan Kinjutsu.