Hetalia: The World Twinkle

Anime where the average episode runtime is under 20 minutes

Anime with lots of cute boys mostly excluding the sports, yaoi, romance or harem genre. Just cute boys doing stuff.
There is a number 2 now https://myanimelist.net/stacks/37404

animes with episodes under 20 minutes

You can actually watch Hetalia in any order. But here's a guide if you want to watch it by release order. Those with asterisks (*) are the parent stories.

Basically, Axis Powers > World Series > The Beautiful World > The World Twinkle > World★Stars.

Hetalia Watch Order:
(5 ONAs, 3 OVAs, 1 Movie, 4 Specials)
* 1. Hetalia Axis Powers (Jan 24, 2009 to Mar 5, 2010) | ONA | 52 episodes × 5 min. per ep. - Prequel / Parent Story
* 2. Hetalia World Series (Mar 26, 2010 to Mar 11, 2011) | ONA | 48 episodes × 5 min. per ep. - Sequel / Prequel / Parent Story
3. Hetalia Axis Powers Fan Disc (May 25, 2010) | OVA | 1 episode × 10 min. - Side Story
4. Hetalia Axis Powers Movie: Paint it, White (Jun 5, 2010) | Movie | 1 episode × 1 hr. 20 min. - Side Story
5. Hetalia World Series Specials (Mar 25, 2011 to Sep 24, 2012) | Special | 4 episodes × 5 min. per ep. - Side Story
* 6. Hetalia: The Beautiful World (Jan 25, 2013 to Jun 21, 2013) | ONA | 20 episodes × 5 min. per ep. - Sequel / Parent Story / Prequel
7. Hetalia: The Beautiful World Specials (Apr 24, 2013 to Oct 30, 2013) | Special | 4 episodes × 5 min. per ep. - Side Story
8. Hetalia: The Beautiful World Extra Disc (Feb 26, 2014) | OVA | 1 episode × 5 min. - Side Story
* 9. Hetalia: The World Twinkle (Jul 3, 2015 to Oct 9, 2015) | ONA | 15 episodes × 5 min. per ep. - Sequel / Other / Parent Story
10. Hetalia: The World Twinkle Specials (Oct 28, 2015 to Dec 25, 2015) | Special | 3 episodes × 5 min. per ep. - Other
11. Hetalia: The World Twinkle Extra Disc (Feb 24, 2016) | OVA | 1 episodes × 12 min. - Side Story
* 12. Hetalia World★Stars (Apr 1, 2021 to Jun 17, 2021) | ONA | 12 episodes × 5 min. per ep. - Side Story / Sequel / Prequel
13. Hetalia World★Stars Specials (Jul 28, 2021) | Special | 3 episodes × 5 min. per ep. - Sequel

If you wan't to watch in chronological order, start with (1) Hetalia Axis Powers followed by (3) Hetalia Axis Powers Fan Disc and (4) Hetalia Axis Powers Movie: Paint it, White before (2) Hetalia World Series and then (5) to (13) as listed.

I watched these out of order with subtitles. I will rewatch these in release order with dub.

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Reading Order:
1. Hetalia Axis Powers (Mar 28, 2008 to Jun 29, 2013) - Parent Story
2. Hetalia World☆Stars (Sep 22, 2014 to ?) - Side Story

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Genre: Comedy
Themes: Anthropomorphic, Gag Humor, Historical, Parody

Tags: Country, Nation, World War, Franchise, Short Series

Club: Axis Powers Hetalia Club https://myanimelist.net/clubs.php?cid=6455 (Inactive)

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Official Sites:
Series:
• Hetalia Axis Powers http://hetalia.com/top.htm
• Hetalia World Series http://hetalia.com/story/world_series.htm
• Hetalia Axis Powers Movie: Paint it, White http://hetalia.com/movie/index.htm
• Hetalia: The Beautiful World http://hetalia.com/bw/
• Hetalia: The World Twinkle http://hetalia.com/twt/
• Hetalia World★Stars https://hetalia-ws.com

Hetalia Musical http://musical-hetalia.com
https://www.gentosha-comics.net/search/?search_word=ヘタリア&search_menu=keyword:
https://shonenjumpplus.com/episode/10833497643049549836

Twitter (X):
日丸屋秀和 公式 (Hidekazu Himaruya Official) (@hima_kaz) https://x.com/hima_kaz
Hetalia Official (@animehetalia) https://twitter.com/animehetalia
Hetalia Official (@HetaliaOfficial) https://x.com/HetaliaOfficial
アニメ「ヘタリア World★Stars」公式 (Official website of the anime "Hetalia World★Stars") (@animehetalia_ws) https://x.com/animehetalia_ws
ミュージカル「ヘタリア〜The glorious world～」公式 (@hetamu_official) https://twitter.com/hetamu_official

Wikis:
https://en.wikipedia.org/wiki/Hetalia:_Axis_Powers
Characters: http://hetalia.com/character/index.htm
‣List of Hetalia: Axis Powers Characters: https://en.wikipedia.org/wiki/List_of_Hetalia:_Axis_Powers_characters
‣List of Hetalia: Axis Powers Episodes: https://en.wikipedia.org/wiki/List_of_Hetalia:_Axis_Powers_episodes | https://hetalia.kitawiki.net/index.php/List_of_Hetalia_episodes
Season 1 (Axis Powers Season 1): Ep. 1-26
Season 2 (Axis Powers Season 2): Ep. 27-52
Season 3 (World Series Season 1): Ep. 53-76
Season 4 (World Series Season 2): Ep. 77-100 + 53.5
Season 5 (Beautiful World series): Ep. 101-120
Season 6 (The World Twinkle series): Ep. 121-135
Season 7 (World Stars Series): Ep. 136-147
Extra episodes:
World Series Ep. 1-5
Beautiful World Ep. 6-10
World Twinkle Ep. 11-14
World Stars Ep. 15-17

Hetalia Wiki: https://hetalia.fandom.com/wiki/Hetalia_Archives
Hetalia Archives: https://hetalia.kitawiki.net
ANN: https://www.animenewsnetwork.com/encyclopedia/manga.php?id=10178
Hetarchive (A Hetalia Reference Guide) https://hetarchive.net/

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There's Hetalia Archives but I need a Hetalia episode to chapter (+ musicals, drama CDs, etc.) converter badly. Ugh, I don't think I could do it; there are so much media material.

Anime: https://hetalia.kitawiki.net/index.php?title=Category:Anime | https://hetalia.kitawiki.net/index.php?title=List_of_Hetalia_episodes
Manga: https://hetalia.kitawiki.net/index.php?title=Category:Manga
Audio: https://hetalia.kitawiki.net/index.php?title=Category:Audio_Media | https://hetalia.kitawiki.net/index.php?title=List_of_Hetalia:_Axis_Powers_CDs
Musicals: https://hetalia.kitawiki.net/index.php?title=Category:Musicals | https://hetalia.kitawiki.net/index.php?title=HetaMyu

Note: I added episode lists and some synopsis/summary for Hetalia Axis Powers and Hetalia World Series (as well as some of the extras) because the Hetalia Axis Powers Fan Disc was confusing. Those with ⬅️ are part of the fan disc.

✔️。

Educational Anime
- (contains Anime that aren't educational for everyone or shows that are educational in a wider sense).
- excluding adaptations of western literature like Heidi, Three Musketeers etc.

Shows you can watch within an hour or a couple of hours.

Complete Hetalia Franchise Watch Order.