Overall a disappointment, I think. A much more passive game than I was expecting - the only reason to even hit the interact prompts during the cutscenes is because you get achievements for them - and the actual gameplay is mostly pretty slow and clunky. The game switches things up a little in Chapter 5 and becomes a little more Myst-like, and I think it would have been better served if the whole game was like this, investigating crime scenes and so on - and I don't even particularly like Myst!
Wasn't a big fan of the how the story ended up, either - I think the specifics of who the culprits are and the details of the Tokijiku are a pretty weak resolution, especially considering the themes that these Old Family detective stories tend to be couched in, and having the finale hinge on a big emotional hook doesn't really work for me when playing a hokey FMV game, especially one where the main thing I want to know is the trick, not the motivations. Get this J-drama flim-flam outta here!!

There are some parts I like - the initial case at the auction and the nightclub case, those are good. I say the cutscenes are hokey but I like that, FMV games are supposed to be hokey! And I like all the references to things like Shin Seinen magazine and the roots of popular detective fiction in Japan. Shin Seinen is also the name of a real good Ningen Isu album, give that a listen.