Cottage Core Critters is like the delightful love child of Wanderhome, Stardew Valley and Blades in the Dark. From that description alone, you should be able to grasp that it is very RP focused, exploring the relationships and shared storytelling between both PCs and NPCs.
While the emphasis of the corebook is on smaller, slice-of-life stories and adventures, there is enough mysterious lore regarding nature and spirits e.g. to make for some more fantastical stories (although what could be more fictional more a cozy slow life?).
If you do decide to give it a go, you can expect to have a fun time creating your own critter, and to end the session feeling better than you did going in.
Needs more badgers.