I feel like this is one that will get better as it gets going. It looks to be playing on a lot of the fantasy and isekai tropes in a way that can be refreshing as a comedy. Akira wants to live a better life, like we get with most isekai protagonists. Valaris is more the straight man here. Though changing the roles of heroes and demon lords does catch my interest.
I think it has everything to be successful. I expect Japan to love it. Though Western popularity I am not sure of.