In the process of building Dante's personality, the first thing that came up in Hideki's mind is the character came from the Japanese comic "Cobra".
"Even when Cobra fights, he has a little smile on his face, it is cool. But, sometimes Cobra makes a serious face and it makes tension for the readers. Dante too, usually Dante talks to devil like he doesn't care, but he is carrying sadness and spiteful feelings because his family was killed by devils, so his mind can't be calm like water without a wave. He is not going to be scared but his mind is burning with anger. But if he lets devils know about his feelings, the devils provoke and try to hurt his feelings..... so he pretends to be calm and keeps pretends.... then in the end, he can't keep doing it anymore and his story climaxes.
"The beauty of keeping feelings inside" is really Japanese way, I think. But I wanted to create not always mad or calm character, the character has liveliness."He put all the feelings of a hero in to Dante.