Board Thread:General Discussion/@comment-25266931-20170206193307/@comment-25936766-20170210224623

SpiritedDreaming wrote: Doesn't stop the fact that the first three volumes are a single arc, which in anime terms mean they're the same season. Not even in anime terms. A single arc can develop through multiple seasons. Especially in long-runner animes full of filler.

For example, Bleach. The Arrancar Arc, took more than 200 chapters in the manga, 4 publication years, and 4 years in the anime. 1 arc, through multiple seasons/volumes.

Generally, most anime companies try to wrap up 1 or 2 arcs in a single season, but others like to let it drag for eternity.