Story

ONA — 1 episode, Finished.

Short animation, from oscar winner Kunio Katō (加藤久仁生) released on the web in 2006

Synopsis via AniList (English).

Seasons & films

Film2008

Suggested by AniList's community, ordered by votes.

FinishedSpring 2019

26 episodes63 episodes across the franchise, still going

FinishedFall 2011

148 episodes

FinishedSpring 2009

64 episodes

FinishedSummer 2012

25 episodes96 episodes across the franchise, still going

FinishedSpring 2016

25 episodes85 episodes across the franchise, still going

FinishedFall 2017

170 episodes

Picked from our own catalogue — same studio, or the genres overlap.