I agree about Raidou being funny as hell. He's just got no end of troubles of the female persuasion, and I feel like it's all his own damn fault, too.
And Dobashi really could be a possibility... but at the same time, he's pretty heavily obsessed with Shogi. His head's not where it needs to be, I figure... though his face seems appropriate for Akari's tastes, there is an issue with his disposition, I feel. Maybe I'm wrong on that, though. I will admit, despite his mental intensity, he's actually pretty chill, at the same time, so maybe...