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Inspector Iwata Books in Order
Below you'll find the complete list of Inspector Iwata books in publication order. This is generally the recommended reading order for the series.
Reading order verified: March 2026
Quick Answer
What order should I read the Inspector Iwata series? Start with "Blue Light Yokohama" (2017) and follow publication order through all 4 books.
The complete Inspector Iwata reading order is listed below in publication sequence.
Publication Order
Blue Light Yokohama
2017
Sins as Scarlet
2018
A Whole Island of Friendliness
2018
Unknown Male
2019
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