Why did Tokyo ghoul second season not follow manga?
- 1 month ago
Filler, I'm assuming.
As in the manga was behind the anime, so they just threw some new stuff in. The same happened with Naruto, Inuyasha, One-Piece... It mostly happens with Shounen because that's typically the most successful demographic. If you were to stop the series for a couple years waiting for the manga to catch up that would be time that could be used to make more money, so they create anime-original content to fill that void.