In a sense after iruma himself develops, this wicked one will exist no more, as the normal one will have already grown into some of these more confident character traits, and this one won't be the opposite of his personality anymore.
And i like the normal iruma a bit more still, he has more room to grow wonderfully and his interactions with the world have more tension to them, for basically every one of his traits.
Chadruma is real sexy though, it was truly fun while it lasted and some great foreshadowing slash side-cast and world development. It's just brilliantly done.