Frankly, it's a miracle it's this playable at all. Considering the dev is from a website where most games involve punching oneself in the bollocks to the sound of the metronome, and this is considered normal game mechanics, I wouldn't get my hopes up wrt creative narratives.
This, really asking for a story is really stretching things up, the developer seems much more interested in making mechanics and testing different things, rather than adding a plot...
A plot at this point wouldn't add anything more than just flavor text, both Hero Corruption games aren't really plot heavy games, rather rogue-like games that revolve on rinse and repeat of getting stronger in stats and statchecking everything...
With luck a Hero Corruption 3 game will be made at some point, with more mechanics and the built up that HC 1 and HC 2 has been having, but a plot..? That's like, the last thing on the line of improvements...