What order should I watch Usakame in?

Watch the main story in release order: Usakame (2016). 17 optional extras are listed separately.

How many seasons does Usakame have?

1 TV season, plus 17 optional extras.

About 48 minutes for the main story, or 5 h 8 min including optional extras.

The Usakame franchise has 18 anime entries: 1 TV season, 17 optional extras. The main story takes about 48 minutes (5 h 8 min with extras).

Built from AniList relation data: entries linked as direct prequels/sequels are the main story; side stories and specials are optional.

What order should I watch Usakame in?: Watch the main story in release order: Usakame (2016). 17 optional extras are listed separately.
How many seasons does Usakame have?: 1 TV season, plus 17 optional extras.
How long does it take to watch all of Usakame?: About 48 minutes for the main story, or 5 h 8 min including optional extras.