I personally love this series because i like stories about god and goddesses in general. And i will agree the leveling system is confusing if you only read the main story. If your interested in learning more about the leveling system i suggest playing the app game. If you want to learn more...
https://mangadex.org/title/44862/priscilla-s-marriage-request
Priscilla's Marriage Request has a pretty similar feel and id say i love it just as much as i love reading this one too.
Happy reading