Honkai Star Rail isekai au but instead of being isekai'd as like a member of the express, Y/n or whateva gets isekai'd as a fucking Aeon. And they so desperately want to interact and nudge the characters in the right direction but bc, y'know, they're now a being of cosmic power, it's a little hard to do so without the possibility of accidentally blowing shit up or scaring the hell out of people bc of your massive, incomprehensible form
Edit: I just remembered that Aeons can sometimes assimilate with other aeons if their paths overlap and if one is broader than the other, imagine if Aeon!Y/N accidentally does it cause the path they claimed to be was a broader concept than another Aeons, and now this new Aeon just straight up accidentally ate another one that's been around way longer and everyone is terrified meanwhile they're just like;