The original Japanese series doesn't have season splits. The seasons very much depends on where you watch it which is why there are so many alternative orders: https://www.themoviedb.org/tv/30984-bleach/episode_groups

How do you access alternative episode orders? I have never seen a category like that and can't find it myself.

To see them you can either:

• In the white top bar, go to Overview -> Episode Group
• "Original Air Date" appears next to last season to indicate there are alternative orders available

To create a new alternative order:

• Overview -> Edit -> Episode Groups

I don't know anything about the API, but they can also be requested there.

I appreciate the info, thank you Banana o7