One flashback scene of Tomoe and Mikage interacting shortly after they made the familiar contract. Mikage sends Tomoe to deal with a demon attacking people on a local bridge. Tomoe kicks the demon's ass when it's attacking a local woman. The woman immediately hugs Tomoe in gratitude. Tomoe's response is to scream "Don't touch me!" and chase her off with his fox-fire. Next we see Mikage berating Tomoe for this act, about half-way through Mikage's rant Tomoe starts wiping his hand on Mikage's jacket.
Mikage: Tomoe, what are you doing?
Tomoe: A human touched me.
Mikage: I am not a wash-rag!