Master Busujima

History
He is Saeko's father and he is very skilled with the way of the sword. He and the rest of the Busujima family have protected the throne of Japan for ages. He also owns a dojo overseas near Japan and trained Saya's father, Souichirou Takagi.

Personality
From what Saeko has mentioned of him, Master Busujima appears to be an honorable person, as he told his daughter to uphold promises even at the cost of her life.

Plot
Before the outbreak, he traveled abroad for a self-defense conference.