Oboro Tessai Masahiro

Oboro Tessai Masahiro (朧　鉄斎　正博) or simply Tessai Sama is a shinobi master of the Oboro Clan. The 31st leader of the Oboro ninja, he is Jo Musashi's master, and the father of Himiko and Ibuki.

About
Tessai is the 31st Successor of the Oboro Ninja Arts and the headmaster of the Oboro School of Shinobi. As the leader of the clan he has served in the shadows to defend the land's prosperity together with Jo's father. After Jo's parents died in a mission gone awry, Tessai took Jo in at the behest of his grandfather, who was too sick with grief to teach him. Tessai taught Jo the skills of the Ninja, and watched his pupil become a splendid shinobi; one worthy of the sword of the Oboro masters of old; Oborozuki. Having named Jo his successor, he seeks to evolve the clan for the next generation.

Appearance
Tessai is a middle aged man with spiky graying black hair and an athletic build. He tends to wear Chinese garb demonstrating his ancestral pride. As a shinobi he wears a dark brown cybernetic suit with a HF katana on his back and a helmet that completely conceals his face.

Personality
As the head of the Oboro Founding Household, Tessai is a respected member of the Mochizuki Caste of the Oboro clan. A firm believer in the teachings of the Rising Moon Clan, Tessai teaches that the Oboro must evolve with every era to ensure the survival of their tradition and the prosperity of the world.

Despite being a stern and direct teacher, he is a also a warm and fatherly figure to his students, including Jo, whom he raised like a son in the main household of the Oboro family. His daughters Himiko and Ibuki are a great joy to him and he takes pride in his nephew Kazuki. As a shinobi he places the mission's completion as priority. He prefers to avoid confrontation but is hardhearted enough to commit mass murder when no other option is necessary. When angered in battle there is normally nothing left of his enemies but a puddle of blood, or smoldering corpses, earning him the nickname "The Black Demon" due to his mastery of fear tactics.