Kaltz's outfit will be basically the same as in canon, due to it being directly related to his being a devil and therefore to his heart conflict. The differences are that on the collar will be the pattern of a Kiran tattoo in white and grey due to the connection to both Kaya and Asato, and on the cape will be printed white flowers due to the connection to both Kaya and Meigi. Of course, he'll also have the horns, tail, and pointed ears.

His melee weapon will be this sword except in the form of an actual sword. His gun will be this, except inlaid with sapphire and mother-of-pearl.