I don't see Asmodeus x Clara possible. The only thing they have in common in is Iruma, and they even acknowledge that. It's said they don't get along well, and disagree on several things. I just don't see him or her ever being interested in each other, they're both interested in Iruma. He keeps thinking he wants to be his servant when Iruma is demon king, but his level of obsession with him might be pretty gay and more than just servitude. Even if it wasn't love for Iruma I don't see him pairing with Clara. People need to stop confusing friendship as a excuse to ship. I ship characters all the time, but only if it's realistic or seems possible. I can't stand forced or random romance. I friendship them, but that's it. If Iruma is going to be with anyone it'd be Ameri, the manga is already set up for that route