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RIKACHI: Amazon KDP author data

As of Nov 6, 2026, RIKACHI has 11 books on Amazon, 11 of them on a best-seller list in the last 30 days (best rank #15), mostly in Josei, Manga, Comics, Manga & Graphic Novels.

11Books on Amazon
11Listed in 30 days
4.8Average rating
Median price$5.99
Price range (middle 50%)$5.99 – $5.99
Median reviews200
Total reviews2,315
New books (30 days)1
Breakout books (30 days)1

View on Amazon

What stands out

  • 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
  • Median price $5.99, 50% below the median of their main category, Josei.

RIKACHI's best-ranked books

  1. Nina the Starry Bride Vol. 7 book cover by RIKACHI

    Nina the Starry Bride Vol. 7

    by RIKACHI

    • Price$5.99
    • Rating4.8
    • Reviews283

    View on Amazon · Full data on KDPTop

  2. Nina the Starry Bride Vol. 8 book cover by RIKACHI

    Nina the Starry Bride Vol. 8

    by RIKACHI

    • Price$5.99
    • Rating4.8
    • Reviews224

    View on Amazon · Full data on KDPTop

  3. Nina the Starry Bride Vol. 9 book cover by RIKACHI

    Nina the Starry Bride Vol. 9

    by RIKACHI

    • Price$5.99
    • Rating4.8
    • Reviews242

    View on Amazon · Full data on KDPTop

  4. Nina the Starry Bride Vol. 10 book cover by RIKACHI

    Nina the Starry Bride Vol. 10

    by RIKACHI

    • Price$7.99
    • Rating4.8
    • Reviews191

    View on Amazon · Full data on KDPTop

  5. Nina the Starry Bride Vol. 11 book cover by RIKACHI

    Nina the Starry Bride Vol. 11

    by RIKACHI

    • Price$5.99
    • Rating4.8
    • Reviews181

    View on Amazon · Full data on KDPTop

  6. Nina the Starry Bride Vol. 5 book cover by RIKACHI

    Nina the Starry Bride Vol. 5

    by RIKACHI

    • Price$5.39
    • Rating4.8
    • Reviews190

    View on Amazon · Full data on KDPTop

  7. Nina the Starry Bride Vol. 4 book cover by RIKACHI

    Nina the Starry Bride Vol. 4

    by RIKACHI

    • Price$5.99
    • Rating4.8
    • Reviews189

    View on Amazon · Full data on KDPTop

  8. Nina the Starry Bride Vol. 1 book cover by RIKACHI

    Nina the Starry Bride Vol. 1

    by RIKACHI

    • Price$5.99
    • Rating4.6
    • Reviews388

    View on Amazon · Full data on KDPTop

  9. Nina the Starry Bride 19 book cover by RIKACHI

    Nina the Starry Bride 19

    by RIKACHI

    • Price$7.99
    • Rating4.6
    • Reviews10

    View on Amazon · Full data on KDPTop

  10. Nina the Starry Bride Vol. 6 book cover by RIKACHI

    Nina the Starry Bride Vol. 6

    by RIKACHI

    • Price$5.99
    • Rating4.8
    • Reviews200

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does RIKACHI have on Amazon?

KDPTop tracks 11 of their books; 11 made an Amazon list in the last 30 days.

Which categories does RIKACHI publish in?

Their books chart most often in Josei, Manga, Comics, Manga & Graphic Novels.

How does RIKACHI price their books?

The median price is $5.99; half of the books cost $5.99–$5.99.

Has RIKACHI released new books recently?

1 new book in the last 30 days, 1 of which reached a Best Sellers list.

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.