Usamaru Furuya has written at least 20 books. Their most popular book is No Longer Human, Vol. 1 with 7 saves with an average rating of 3.33⭐.
Series
1 primary bookGenkaku Picasso is a 1-book series first released in 2009 with contributions by Usamaru Furuya.
Series
1 primary bookKanojo wo Mamoru 51 no Hōhō is a 1-book series first released in 2007 with contributions by Usamaru Furuya and 古屋兎丸.
Series
4 primary booksKanojo wo Mamoru 51 no Hōhō is a 4-book series with 4 primary works first released in 2006 with contributions by Usamaru Furuya and 古屋兎丸.
Series
1 primary bookMarieの奏でる音楽 / Marie no kanaderu ongaku is a 0-book series first released in 2016 with contributions by Usamaru Furuya and Paolo La Marca.
Series
2 primary booksShort Cuts is a 2-book series with 2 primary works first released in 1998 with contributions by Usamaru Furuya.
Series
3 primary booksインノサン少年十字軍 / Innocents Shōnen Jūjigun is a 3-book series with 3 primary works first released in 2008 with contributions by Usamaru Furuya.
Series
2 primary books人間失格 / Ningen Shikkaku is a 2-book series with 2 primary works first released in 2009 with contributions by Osamu Dazai.