A good way to protect your manga – Book-Kun

A good way to protect your manga - Book-Kun

I love all my books and manga and always try to protect them the best way possible. On my visit to Tokyo, I discovered these lovely book protective sleeves at K-Books in Akihabara and had to buy a couple for my latest purchases. The quality is quite good, the price with 120-200¥ depending on the size, is not that bad and it’s really easy to apply them to your books. There are 10 pieces in each packaging, so you can do the math what one of these ブッカー君, how they are actually called, might cost you.


Unfortunately, I haven’t found a place outside of Japan which is offering these. Even our beloved honto bookstore doesn’t carry any. There are some others brands around offering these protective sleeves but until today I haven’t found a good source for them. When you’re currently in Japan trying to pick some ブッカー君 up for yourself, Tsutaya should always have some in their manga sections. I bought maybe 20-30 of these in different sizes so I’m all set, book-cover-wise.

Update: One of the readers mentioned that you can get these transparent book covers at cdjapan. Thanks a lot for finding these!

And now I should really go and work on my Japanese grammar. I have been slacking a bit these last few weeks. Genki here I come.

A very nice alternative. The prices are for 25/100 pieces which explain the price difference to the other ones. The one listed below is for 少年 manga e.g. One Piece, Naruto etc. You get the drift. That small format JUMP manga for roughly ¥ are always printed in.

【日本製】コミック侍 透明ブックカバー【新書判 少年少女コミック用】25枚
【日本製】コミック侍 透明ブックカバー【新書判 少年少女コミック用】25枚
【材 質】OPP 【内容量】25枚 【製造国】日本; ※対応書籍は下部にある商品説明の一覧をご確認ください。

Most 青年 titles like Billy Bat or the Dragon Ball 完全 版 use this format:

【日本製】コミック侍 透明ブックカバー【B6青年コミック用】25枚
【日本製】コミック侍 透明ブックカバー【B6青年コミック用】25枚
【材 質】OPP(オーピーピー) 【内容量】25枚 【製造国】日本; ※対応書籍は下部にある商品説明の一覧をご確認ください。

book kun manga sleeves





Maybe you were wondering why all my manga looked to “shiny” on my pictures. That’s because I applied these book sleeves to all of them. It’s good for reading and storing them but always a pain to take proper pictures because of the reflections.


Comments 36
  1. Hello!
    Which of the covers would you recommend for these manga:
    – H 17.3cm x W 11.3cm
    – H 17.7cm x W 11.5cm
    – H 18.3cm x W 13cm

    By any means, all of these measurements are from Japanese manga that I have bought online and not the English ones

  2. Do you know which cover could work with the Tokyo Ghoul volumes in the US? The dimensions are 5.8 x 0.8 x 8.2 inches.

    1. Hello Jaethan, my name is Phuong from Vietnam. I sell many types of these book protective sleeves. If you interested, pls contact.

      1. Hello Lê Phuong. Do you still sell these books sleeves? Kindly email me please.

  3. hello there!!! I was wondering what size would be suitable for the Tokyo pop North American manga format??

        1. Sorry for the late reply Ramon, but I completely forgot about it.

          I just measured both Shirokuma cafe and Yotsubato and both won’t fit the dimensions you mentioned. The A5 one would be your best bet with 21cm (length) to 15cm (width). The 青年 one (green) is 18cm x 13cm.

  4. Hi, may i ask the sticker peeling part is to stick on the manga book itself? It is the back of the book right? Thank u so much.

    1. These protected sleeves only cater to the Japanese market and are probably not compatible with most US editions unless they just used the Japanese format. There are definitely none for these super big 3 in 1 editions.

  5. can anyone tell me that which size is the perfect fit for standard paperback manga. Thanks.

  6. Hey I wanted to know witch ones will fit perfectly with my naruto manga collection? Thank you

  7. They’re wonderful. I need them. Witch one is good to cover Yotsubato? I’m bad at calculating so please save me here!
    Thank you so much for sharing.

    1. Glad you like them. I have to admit that I’m really fond of these covers. Just feels good to wrap all those new manga which just came in.
      You would have to use the green ones where 青年 is written on the to left (green) strip.
      The red ones fit bigger manga like all complete editions and Shirokuma Café.
      The blue ones are for all small shonen manga.

  8. Ich würd wirklich gerne welche von den Schutzhüllen für meine Mangas haben. Scheinen mir wie du schon erwähnt hast, sehr nützlich. Nur ich habe auch noch keinen Ort gefunden wo man welche bekommt. War letztens in Düsseldorf wo es auch japanische Buchhandlungen gibt bin dort aber auch nicht fündig geworden. Naja weitersuchen. Auf jedenfall ein toller Blog den du hier hast. Ich schau regelmäßig vorbei. Also mach nur weiter so.

    1. Merci für die nette Worte. Freut mich sehr, dass dir die Seite gefällt :) leider habe ich auch noch keinen Shop gefunden, der diese Hüllen ins Ausland versendet. Bei rakuten könnte es aber vielleicht einen Händler geben, oder du bestellst gleich einen ganzen Haufen von den Hüllen über einen Mittelsmann in Japan. Selbst als ich in Tokyo war, wussten die meisten Verkäufer nicht was für Hüllen ich da genau suche. Das hat zum Einen natürlich an meinem beschissenen Japanisch gelegen, aber besonders bekannt sind die Dinger selbst in Japan nicht.

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