|Eye Color||Light Blue|
Touma is first introduced in chapter 23 of the manga when Ouri, Makina, Takamasa, and Itsuki traveled to Mount Goryo to undergo physical training in preparation for their upcoming war against the Unclean Bunch organization, which is led by the Unholy King, Sugamimaen. After Makina failed her bond severance training, Touma would start to fight her when she went berserk due to her strong curse and the refusal to accept Ouri as her new contracted monk.
In the anime adaptation, Touma also briefly appeared in episode 4 of season two, during a flashback of Takamasa's discussion with Umehara, concerning the true nature of Shikabane Hime.
- The name Touma means "winter" (冬) (tou) and "hemp, flax" (麻) (ma).
- Touma's surname Sawamiya means "marsh" (沢) (sawa) and "temple, shrine, palace" (宮) (miya).