Books like Battle Royale
Kōshun Takami, Masayuki Taguchi, Koushun Takami, Kashoun Takami, Koushum Takami
Battle Royale is 647 pages, about 11 hours 52 minutes at 250 words a minute.
12 books to read next
How long each takes
Naruto 05 3.4 h 
GTO 28 min 
Banana Fish, Vol. 1 3.7 h 
Naruto, Vol 1 3.5 h 
Cipher 3.7 h 
The Ring 3.5 h 
美少女戦士セーラームーン 2 4.1 h 
No Longer Human 3.4 h 
美少女戦士セーラームーン 1 3.5 h 
Nana 3.5 h 
The Walking Dead, Vol. 1 2.6 h 
Initial D 4.2 h Bar height shows length. Estimated at 250 words a minute.