It is an understanding request. Dimitri already knows that he will do it without question, should he ever receive that blessing himself. And yet, it is something that he cannot quite be content with. Not with what such a request implies.

"If I talk to him, then I will, with all of my power, ensure that you can talk to him as well, and he can inform you of such a thing with his own lips," Dimitri swears quietly, fingers pressing down all the more against Shiro's back. "I will not let go of him until I have found you. On this, I promise."

He promises with all that he possibly can, as a simple mortal man.