Quick Answer
Aoki Hagane no Arpeggio: Ars Nova - Kirikumas is streaming on Crunchyroll. 13 episodes (~5h total watch time). Availability may vary by region.
Where to Watch Aoki Hagane no Arpeggio: Ars Nova - Kirikumas
Aoki Hagane no Arpeggio: Ars Nova - Kirikumas is currently on Crunchyroll. Keep in mind that catalogs change by region — if you don't see it on your usual service, check the other platforms listed here.
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Anime licensing changes by region. If Aoki Hagane no Arpeggio: Ars Nova - Kirikumasisn't on your usual service, try these.
About Aoki Hagane no Arpeggio: Ars Nova - Kirikumas
The rebroadcasting of the 12-episode TV anime Arpeggio of Blue Steel: Ars Nova has started on Tokyo MX and Sun TV since yesterday on April 5. Its each episode comes with a newly-produced 60-second parody short series "Kirikumas" featuring the world all of the mental model girls become stuffed teddy bears. (Source: Crunchyroll)
Full details on MyAnimePulseFrequently Asked Questions
Where can I watch Aoki Hagane no Arpeggio: Ars Nova - Kirikumas legally?
Right now, Aoki Hagane no Arpeggio: Ars Nova - Kirikumas is on Crunchyroll. That said, anime licensing varies a lot by country — what's on Netflix in Japan might not be on Netflix in the US. If your go-to platform doesn't have it, try the other services listed above.
Is Aoki Hagane no Arpeggio: Ars Nova - Kirikumas on Netflix or Crunchyroll?
It's confirmed on Crunchyroll. Netflix availability depends on your region — some countries have it, others don't.
Is Aoki Hagane no Arpeggio: Ars Nova - Kirikumas available with an English dub?
Dub availability depends on the platform. Crunchyroll has been expanding their dubbed library a lot recently, and Funimation (now merged into Crunchyroll) historically had the biggest dub catalog. Check each platform's listing for Aoki Hagane no Arpeggio: Ars Nova - Kirikumas.
Can I watch Aoki Hagane no Arpeggio: Ars Nova - Kirikumas for free?
Crunchyroll offers a free ad-supported tier for some shows. Most other platforms require a subscription, but many offer free trials for new users. Tubi and Pluto TV occasionally have anime in their free rotation too.