His eyes go wide as he realizes just want Takao did.

"Oh." He doesn't feel anger, nor does he really know how to react, having honestly never been the target of a prank before. Yukimi had tried to make him laugh ages ago, but since it was a fruitless endeavor he had ceased.

"That will never work with me." All he feels is the regret associated with losing that sense in particular. He curls a hand into a fist and looks away.