I wanted to start this challenge just for fun! It might be better suited for those who are level 15-20, but I’ll take the challenge anyway. Let’s see how it goes!
There is just one rule: Take your Wanikani level, go to Natively, find a book that’s the same level as you (my WaniKani level is 28, I’ll find a book that’s level 28), and read that. As you level up to the next level, find a book that corresponds to your new level.
Edited to add: If you’re below level 30, read your level. If you’re above level 30, you may read two books at half your level.
If you go to the book’s page on Natively, there are links to where you can buy the book. For your book, it looks like it’s only available in paperback.
If a book is available from Amazon as a Kindle (digital) version, it will look something like this:
I have one email address for amazon.com and another email address for amazon.co.jp. I really recommend having two separate email addresses. It will save you a lot of headache later!
Thank for the reply ! I’ll try this instead then かぐやひめ はじめての世界名作えほん | L12 since it’s available on kindle. I’ll do the buying this weekend.
Count me in !
oh, this sounds fun~! ^^-
i’m level 9 currently, and lucky for me there’s a free book
ピーターラビットのお話
heehee
it does have full furigana, unfortunately, so i might get someone to erase that first
i’ve only read a couple pages so far
(been browsing the forum at the same time xD)
but i’ve already come across two kanji that i don’t know yet, so i wonder how they actually decide what level the books are
there is an mp3 available, so listening to that (i removed the furigana) tells me i do already know the words, so it’s not a big deal
i understand it’s not going to be a 1:1 because japanese kids learn kanji in a different order
There’s no direct correlation between WK levels and Natively levels. On each book’s page, you’ll see a number of gradings, where those who read that book compare it to other books they have read. Using those rankings, the books are placed on a level. It’s a bit random, and books do jump up and down a little depending on who grades the books and what they grade it against.
This gives you an idea of how the levels compare to the N5-N1 levels.
On Wanikani, you’ll complete N5 at level 16, N4 at level 27, N3 and N2 at level 51, and at level 60 you’ll know about 79% of the N1 kanji (stats from WKStats).
That’s right. According to WKStats, you’ll complete grade 1 kanji at WK level 8, grade 2 at WK level 18, and grade 3 and up around WK level 50-60. Reading Japanese will always require intimate knowledge of dictionaries
Anyway, this is just a fun challenge, and maybe a way to find stuff to read and challenge yourself.
The difficulty level of a book on Natively usually depends more on vocabulary usage and how much the author likes grammatically complicated sentences than on kanji usage. Books and manga with full furigana also usually end up graded as being easier.
regardless, i’m having fun reading the book ^^-
sometimes i can guess the word from the context, sometimes i need the audio to read it for me and then i know it from that
but i did have to look up どろぼう and 薬
the second i should’ve known, as i made it to level 24 before, but by then end, the more new stuff i tried cramming in my brain, the more the recent stuff came tumbling out
Looks like @Marifly already gave you all the juicy bits just an additional comment:
You needn’t use a different e-mail address when registering, but do set a different password so it (Amazon) can differentiate between your accounts when logging you in to Kindle apps or devices. If you use the same pw with the same e-mail, they’ll automatically log in your “global” account not the JP one without prompting you to choose.
And a short rant about Amazon's account 'strategy'
Even in 2025, one cannot use the Amazon “global” account (that works for all their European and America sites, at least) on the JP site. I struggled for a few days with Customer Support (not quite the sharpest tools in the shed, but oh well) to get my US account migrated to the JP Kindle Store… with no success. Up to that point I actually thought I had a single account everywhere (I had used the same mail and pw) but noooo, they are completely separate accounts and cannot be merged. That is to say, your global-bought books stay with one account, your JP-bought books with the other. Grrrrrr!
Anyway.
Right now I’m WK L29, digging into L30 on Sunday. I’m reading one that I self-graded to L26 when I requested it be added to Natively (based on the level of another by the same author) but going by the amount of… “unusual” words used (lots of N2 and N1 and “supplemental” ones in there) and some half-a-page long paragraphs… it might as well be L40 (to me)
If I do finish the book before reaching L31 here, I’ll go back to an L30 one I had started and put aside, and report back.
Although… yeah, the Natively levels are highly subjective. What might feel like L25 to someone could be L35 to another just because they’ve been exposed to different writing styles and vocab content…
just an additional comment:
I also believe in myself at a permanent level 3 
