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Kaiu Shirai: Amazon KDP author data
As of Nov 6, 2026, Kaiu Shirai has 49 books on Amazon, 40 of them on a best-seller list in the last 30 days (best rank #19), mostly in Dystopian, Dystopian & Post-Apocalyptic, Science Fiction & Fantasy.
| Median price | $6.99 |
|---|---|
| Price range (middle 50%) | $6.29 – $7.99 |
| Median reviews | 1,729 |
| Total reviews | 97,480 |
| New listings (30 days, incl. new editions) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 82% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $6.99, 53% below the median of their main category, Dystopian.
Kaiu Shirai's best-ranked books
-
The Promised Neverland Complete Box Set: Includes volumes 1-20 with premium
by Kaiu Shirai
- Price$129
- Rating4.8
- Reviews524
-
The Promised Neverland, Vol. 1: Grace Field House
by Kaiu Shirai
- Price$7.49
- Rating4.8
- Reviews6,152
-
The Promised Neverland, Vol. 12: Starting Sound
by Kaiu Shirai
- Price$6.29
- Rating4.9
- Reviews1,727
-
The Promised Neverland, Vol. 11: The End
by Kaiu Shirai
- Price$6.29
- Rating4.9
- Reviews1,898
-
The Promised Neverland, Vol. 10: Rematch
by Kaiu Shirai
- Price$6.99
- Rating4.9
- Reviews2,001
-
The Promised Neverland, Vol. 13: The King of Paradise
by Kaiu Shirai
- Price$6.29
- Rating4.9
- Reviews1,989
-
The Promised Neverland, Vol. 1: Grace Field House
by Kaiu Shirai
- Price$6.29
- Rating4.8
- Reviews6,152
-
The Promised Neverland, Vol. 3: Destroy!
by Kaiu Shirai
- Price$6.29
- Rating4.9
- Reviews3,284
-
The Promised Neverland, Vol. 2: Control
by Kaiu Shirai
- Price$7.40
- Rating4.8
- Reviews4,306
-
The Promised Neverland, Vol. 5: Escape
by Kaiu Shirai
- Price$6.29
- Rating4.9
- Reviews2,939
Main categories
FAQ
How many books does Kaiu Shirai have on Amazon?
KDPTop tracks 49 of their books; 40 made an Amazon list in the last 30 days.
Which categories does Kaiu Shirai publish in?
Their books chart most often in Dystopian, Dystopian & Post-Apocalyptic, Science Fiction & Fantasy.
How does Kaiu Shirai price their books?
The median price is $6.99; half of the books cost $6.29–$7.99.
Has Kaiu Shirai released new books recently?
0 new books in the last 30 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.