Sandayu Asama in Naruto

When Sandayu was young, he lived in Kazahana Castle and served the daimyo, Sosetsu Kazahana. However, he left the place when Doto Kazahana rebelled and burned down the castle, killing Sosetsu, Sandayu, and Koyuki. Sandayu then became Koyuki's personal assistant during her acting career.

Sandayu hired Team Kakashi to protect Yukie and take her to the Land of Snow. He suggested this location to Yukie's movie director with the goal of restoring her as the rightful heir to the throne that Doto Kazahana had taken. Doto appeared on the movie set when they arrived in the Land of Snow.

Later, Sandayu led a group of 50 samurai to attack Doto, seeking revenge for Sosetsu Kazahana's death, who was Doto's brother and Koyuki's father, killed by Doto ten years earlier. Unfortunately, Doto's ninja subordinates launched deadly attacks from their train compartments, wiping out Sandayu's entire group. Before his death and after Dotō retreated, Sandayu told Koyuki not to cry for him.

Sandayu was loyal and brave. He cared deeply for Koyuki and was willing to risk his life to protect her and seek revenge for her father's death.

Sandayu had a reading glass on his nose and had short grey hairs with a beard of the same color. His moustache was also gray and he had fair skin. He wears a black coat and under that, a light blue shirt.

When he went to fight, he wore samurai attire with a katana and bodyguards. He also wore a red open kimono and forearm guard.

Sandayu was not a skilled samurai, which made him die quite easily in battle, but he was brave.