Most fans of anime, especially those which have a high number of episodes, are all too familiar with filler content. When an anime and the manga it's based on run concurrently, the former always risks overtaking the latter. Inserting anime-original episodes or arcs allows a series to continue without breaks between seasons (as with My Hero Academia), and simultaneously stay comfortably behind its respective manga. Unfortunately, filler is infamous in the anime community for inferior writing and animation, and sometimes for taking up an uncomfortable percentage of the overall show. Perhaps no major anime is as guilty of this as Bleach.