In Kimetsu academy, there is always taht student that can soothe a teacher. In tomioka's case, not only sooth him, but made him follow orders like a puppy.

"Tenten?" "Shhhh, its just a dream" "This is not a dream, Tenten" He told her, softly, worry evident in his eyes. It was then that he saw desperation beginning to take over her.