Hahaha well I was being that serious about the subtext but it's funny, I think it's about the red and blue Oni folklore or something.
Not really. Cute girl series tend to star one of two related archetypes: The energetic, talented, and kinda dumb redhead, or a pink-haired girl who's like that but with more self-doubt
The aloof girl with long dark hair is older, more widespread archetype, but has become common for love interests in these kind of series even since people noticed that MadoHomu was popular
Also! Vladlove revealed some designs, I didn't know
Yeah, I'm not sure what to make of that. Getting wildly different impressions from those two visuals