Rukia's also going on the hamster quest, and will definitely remember Kaji as the "cheapskate" at the auction. Comedic bickering and/or tight teamwork would be amazing, if that sounds good to you too.

I'd also love for Akane to develop more CR with him (even if flirting goes right over her head). It seems like they have some similar ways of thinking, though she's a little more guilt-ridden about her own use of manipulation.

And Chrom is always up for diplomatic missions and making people's lives better, as well as offering more less-than-optimal-but-not-completely-terrible plans.