Mystery Anime That Respect the Audience
Three mysteries, three completely different structures. One assembles its solution from conversations you were not told to pay attention to. One knows the culprit matters less than the child being saved. One is less interested in who planted the bomb than in what the state did to make the bombers.
None of them are procedural whodunits, and none rely on a detective explaining the answer in a final monologue. If that is what you want, this is the wrong page.
Why Each One Is Here
Odd Taxi 2021 · 13 eps · P.I.C.S. and OLM
The clearest recommendation. Every digression is evidence, the solution is available if you were listening, and the reveal reframes the show's central visual choice.
Erased 2016 · 12 eps · A-1 Pictures
The mystery is the weakest part and the show is still excellent. Watch it for the 1988 sections and the portrait of Kayo rather than for the culprit.
A riddle-based bombing thriller where the actual mystery is institutional. Strong first half, contested second half, outstanding soundtrack throughout.
A practical warning for all three: avoid summaries, thumbnails and discussion threads before watching. These are shows that spoil easily, and Odd Taxi in particular loses a great deal if you know what is coming.