There are 6 levels and in each level, you're given a series of riddles and try to find an item which matches that riddle. Levels are rather narrow, and after a certain amount of items have been found, you move on to the next level.
Not a bad concept, but the execution is not good and the overall polishing is severely lacking.

The in-game English translation feels pretty off, with grammatical errors and unintentionally hilarious word choices like "blood of the salad anatomy" being present.
Voice acting feels like it's been largely made with text-to-speech and there were occasional glitches like people phasing out of existence.
As already mentioned, the translation is off and this can make the riddle descriptions hard to understand; "Your legs are the legs of this mechanical horse" being one example. Regardless, you can roam around and interact with everything. You'll get the correct answer sooner or later this way.

If this was more polished, it could be an alright game for someone who is just getting into video games and wants something simple to play.
I got it for free and even though it's a short game (won't take more than 3 hours), in its current state, I wouldn't recommend it.