I'm starting to feel really bad for the FL. This god really took advantage of her willingness to do anything to stay by her sibling's side.
Her existence is a focal point for the survival of this world. That would seem really cool if staying alive was all she had to worry about. The politics of her position and nation insinuate that there are people who don't respect their own god's proxy, let alone the elusive big man himself. It also seems that there's something sinister going on in the world that requires the FL to create a barrier ASAP. But the biggest challenge has to be the walking disaster that is her supposed soul mate. Barrier aside, this emperor's antics alone could bring an end to this world. Like, who starts a continental war because he was a bit offended??
Personally, I'm sticking around for the beautiful art and FL. She's got a good head on her shoulders and is aware of the diplomatic clusterfuck she's been thrown into. I'm wanna see how she handles things as she continues to familiarize herself with the world.