Katsuya blanches at the offered cup, shoulders raising even as he tries to get himself in order. On the one hand, Katsuya really doesn't like to drink. On the other, dealing with Majima for the next however long if he refuses the beverage sounds borderline painful. He really needs to make better friends.

"...Thank you." Each word comes out with trepidation but he'll take a small sip all the same. And then stares at the cup. "Oh. These would go rather well with breakfast foods wouldn't they?"