Quick Answer
Good Luck! Ninomiya-kun is streaming on Crunchyroll. 12 episodes (~5h total watch time). Availability may vary by region.
Where to Watch Good Luck! Ninomiya-kun
Good news — Good Luck! Ninomiya-kun has official streams on Crunchyroll. We've got links for all of them, along with fallback search options.
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About Good Luck! Ninomiya-kun
Shungo Ninomiya is just an ordinary, run-of-the-mill high school student who lives at home with his older sister Ryoko—at least when she's not away doing her job as a mercenary. However, Shungo's life ceases to be normal the moment a cute girl named Mayu Tsukimura descends into the middle of his school's campus in a military-grade helicopter. It turns out Ryoko sent this girl, along with her older brother Mikihiro, to live at the Ninomiya household. But the newly-arrived siblings are a little...
Full details on MyAnimePulseFrequently Asked Questions
Where can I watch Good Luck! Ninomiya-kun legally?
Right now, Good Luck! Ninomiya-kun 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 Good Luck! Ninomiya-kun on Netflix or Crunchyroll?
It's confirmed on Crunchyroll. Netflix availability depends on your region — some countries have it, others don't.
Is Good Luck! Ninomiya-kun 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 Good Luck! Ninomiya-kun.
Can I watch Good Luck! Ninomiya-kun 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.