User blog comment:ChishioKunrin/Grimm Eclipse - Steam Greenlight trailer/@comment-25555436-20151015035302

Mmmmmmmm.......nah, still not attractive enough as a game. At least we know of what the girls can do. Now it's just hoping we have more than just 3 skills and 4 characters with 4 combos.

As for Ruby's "red glow", pretty sure it's some kind of super mode with the glow being the indication. Either that or an Aura attack of some sort.