[The response confirms more than one of Reisi's suspicions. First, Kusanagi's answer reveals some degree of certainty that he and Suoh have known each other before. Second, Kusanagi is willing to share information, though to what extent...?]

You have my word. [Just to confirm that:] Your only connection is that he is your god, and you are his shinki.

[Here, he wonders how much information he himself should be prepared to share in the event that Kusanagi decides to be tight-lipped about something.]

What do you know about his powers? or, more specifically, his red flames?