Charming (and the game world its spinning off of looks fun!). I made the mistake of looking at the game, and something in my brain assumed astra was the young girl in the metroidvania game (I think I interpreted the "drawings" in the first bit off text to be like, a child coloring). So it took me a moment to get back on track after that, but that was my fault.
In any case, this has a sweet, charming, wholesome quality to it. The stakes are super low as far as we can tell, which isn't necessarily a bad thing. That said, I'd have liked some idea of WHY we want to learn about astra. Just a bit more motivation or reason to probe for these answers beyond basic curiosity.
Great job, though!