This manga taught me something. Something that is easy to ignore. Don't let your opinions on life close your mind to different possibilities. This is a Manga that does something that most mistery comics fail inmensely to do. If you want a good mistery story you should put all the pieces of the puzzle in front of the reader/viewer, but subvert all of the pieces so they think that the puzzle goes in a way they weren't expecting. hiding information is not a good way to make your readers feel that the other guy is smart, they will fell cheated. You don't even have to make it realistic, but everything needs to fall into place.
I dont give it a higher score because at the time of this review the sequel is shit.
just kidding, that would be a bullshit reason, I don't give it more because the last episode has far too much foreshadowing at the start, the start should be in the middle, but still is amazing.