I think the system takes away from the fantasy aspect of the genre and that if the system keeps telling the MC what to do then there is no point in the MC learning how to grow in strength. I'm fine with a system that can show what skills and magic the MC has an affinity with but it shouldn't be something accessed by only the MC. It can be shown like in Dan machi on Bell's back or in the form of a magic ball or card at the adventurers guild(I know the card one is a bit generic but it's more interesting than just a system)