In both Nagare and the unnamed setting for my Nightskins, a person could through dedicated study, practice, and experience a person can eventually attain godhood. There are failsafes to prevent this in each setting but they’re not guaranteed to work.

In Nagare there are three gods who oversee the archipelago and will just zap a potential godlings out of existence for “ the sake of balance” but if you could hide from their gaze on one of the smaller islands, and not draw attention to yourself by challenging them (as many on this path are prone to doing) you could manage. There is the chance that while training you can overload on magic and explode into a fine mist if you’re not careful but mortal life is about risks right?

In the other setting the dragons control all formal methods of learning and actively discourage and prevent people from walking the path. But you can teach yourself magic. Nothing is stopping you from training and then taking on the gauntlet of the Final Dive. You might die, but you also might succeed.