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Kengo Hanazawa 花沢 健吾（はなざわ けんご、1974年1月5日 - ）は、日本の漫画家。青森県八戸市出身、東京都在住。
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2010
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2012
![アンダーニンジャ 1 [Under Ninja 1] book cover](https://images-na.ssl-images-amazon.com/images/S/compressed.photo.goodreads.com/books/1567604246i/50208698.jpg)
2019
![アンダーニンジャ 10 [Under Ninja 10] book cover](https://images-na.ssl-images-amazon.com/images/S/compressed.photo.goodreads.com/books/1682761345i/137234345.jpg)
2023
![アンダーニンジャ 13 [Under Ninja 13] book cover](https://images-na.ssl-images-amazon.com/images/S/compressed.photo.goodreads.com/books/1719412497i/215500624.jpg)
2024
![アンダーニンジャ 14 [Under Ninja 14] book cover](https://images-na.ssl-images-amazon.com/images/S/compressed.photo.goodreads.com/books/1732693770i/222002737.jpg)
2024
![アンダーニンジャ 7 [Under Ninja 7] book cover](https://cdn.margins.app/catalog/work-covers/001f9393-5785-4ade-a0b2-a5666e1e1332.jpg)
2022
![アンダーニンジャ 8 [Under Ninja 8] book cover](https://images-na.ssl-images-amazon.com/images/S/compressed.photo.goodreads.com/books/1658929980i/61752021.jpg)
2022
![アンダーニンジャ 9 [Under Ninja 9] book cover](https://images-na.ssl-images-amazon.com/images/S/compressed.photo.goodreads.com/books/1672154032i/75346431.jpg)
2023
![アンダーニンジャ [Under Ninja] book cover 2](https://images-na.ssl-images-amazon.com/images/S/compressed.photo.goodreads.com/books/1604323529i/55834195.jpg)
![アンダーニンジャ [Under Ninja] book cover 3](https://images-na.ssl-images-amazon.com/images/S/compressed.photo.goodreads.com/books/1612773141i/56988950.jpg)