Used

<<Attack on Titan>> The Wolf and the Hawk Fairy Tale / Akatsuki Sen (Captain Levi.) / 21st World

Used

<<Attack on Titan>> [Free distribution book] before the ball - before the ball - / Akatsuki Sen (Captain Levi x Ellen) / 21st World

Used

<<BLUE EXORCIST>> Blue Brothers / Akatsuki Sen (Yukio Okumura x Rin Okumura) / 21st World

Used

The King and the Piglet (Part 1) / Akatsuki Sen (Viktor × Katsunari Yutoshi) / 21st World

Used

<<Attack on Titan>> The Wolf and the Hawk the End Continued : Tale of Wolf and Hawk / Akatsuki Sen (Captain Levi x Ellen) / 21st World

Used

<<GINTAMA>> SILVER ZUKAN (silver picture book) (All Character) / 21st World

Used

<<Attack on Titan>> The Man Who Eats Flowers / Akatsuki Sen (Captain Levi x Ellen) / 21st World