Sucks that there is no reward at all for getting the stars. At least give some extra mora or something.
There is an achievement for what it's worth.
Either I just stink at that mode or there's too much dependence on RNG.
I used mostly the trial versions of the starting cast for Feb and couldn't make the star time for the first round so either I just stink, too much RNG, or they need to tweak the trial characters.
It's just not worth the frustration for me for a couple hundred primos.
I'm willing to put up with the abyss because I can pick my own teams and isn't reliant on RNG. Mostly skip floor 12 because I've yet to 36 star the abyss.
Managed to get my sis to start and complete the Inazuma festival within a few hours of it ending. At one point, she got lead astray by a rogue seele and got to one of the shrines for the cleansing the sakura tree world quest from the beginning of Inazuma she hadn't completed yet. She didn't remember what to do so I had to help her.
For battle events, I understand promoting the new characters but I think forcing mechanics that rely on only new characters is a mistake.