>>14386047For me it's because they're on equal levels. A lot of the other duos treat Mumei as a little sister, which isn't a bad thing at all and has lead to some great interactions. Kronii meanwhile just vibes with Mumei really well and they just banter back and forth a lot.
It's why I want her to duo with Gura because I feel like Gura wouldn't go the big sister route and they would just bounce off each other really well.