For some reason, got that weird Midsommer vibe.

Just imagine a farmer person growing some ###-looking fruit to offer to some clearly evil (the pentagram-like-shape) deity.

Eerie!

Does anything happen in this game? Or is it just offering fruits?

I love penguins, and I love fruit, excellent combination. If you added the summoned creatures and had them reward the player with ways to grow even more fruit, you'd have a great start for a game loop there.