I blogged about this here:
https://melodicambient.neocities.org/posts/2020-11-14-Nemuru-Mayu.html

A really dreamy, unique dungeon crawler, with peculiar NPCs strewn throughout its depths. The battle system is confusing, and I remember the inventory system feeling a bit punishing. I didn't get too far but maybe one day I'd pick it up again.

The game doesn't really let you get a sense of 'where you are' in the universe, and I love that feeling of being deattached from a tangible reality.