Was a bit more confusing than previous parts, and felt like lots of leaps of logic had to be made at points, but overall good. The 4th scenario is a highlight, was very fun and unique.

A decent and short investigation game.
A huge disclaimer is that the translation from the game's original Korean is... sub-par. For an example, you'll be given an event to piece together, with one question being "___ is related to what happened" and another being "___ has to do with what happened", with both questions meaning completely different things that make more sense in Korean (probably, idk) than in English.
The overall mystery and such was fun, but this game has the issue lots of small detective games have where it has lots of interesting mechanics and features that you only get to use once.
Having a limit on whatever that thing was called was stupid. I didn't reach the limit, I didn't even get close, but it was an unnecessary constraint that didn't really add anything.
TLDR, get for at most 10 dollars.