Very cute, and even if there's not a lot to upgrade for now I feel like it can become a really interesting experience with future updates.

I like games with a cooperative spirit (haha) and this one feels like it wants to reward time and efforts put into helping those spirits with flowers, gifts, companionship and warmth.

Gameplay-wise the events force you to adapt your rythm and how you spend your ressources and the scarcity of gifts compared to the cost of upgrades makes it so you must think of the challenges incoming before buying one.

Overall good experience, I'll be happy to come back with future updates :)