An ordinary young woman living in the 21st Century. While trying to get her head around Japanese history after class one day, she finds herself whisked to Honnō-ji during the Sengoku period. Having been trained in swordsmanship by her grandfather at his dojo since she was a child, she's no stranger to the sword.
Fierce, determined and optimistic, Tsumugi prefers to act first and ask questions later. She possesses an inexplicable charm that draws in all who surround her. Her hobbies include shopping and eating desserts (especially crepes).