Quick Answer
I'll Live a Long Life to Dote on My Favorite Stepbrother! is streaming on OceanVeil. 12 episodes (~5h total watch time). Availability may vary by region.
Where to Watch I'll Live a Long Life to Dote on My Favorite Stepbrother!
Looking for I'll Live a Long Life to Dote on My Favorite Stepbrother!? It's available on 1 platform right now. Scroll down for direct links and search options if it's not showing up in your country.
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About I'll Live a Long Life to Dote on My Favorite Stepbrother!
Alba is reborn as the son of a poor nobleman. He is unable to use magic due to a disease and is destined to have a short life, so he is taken in by the duke's family. There, he meets Orsis, who was his favorite person in a previous life. While this coincidence seems to good to be true, he remembers that he is why his beloved lost his smile, and begins to search for a way to live a long life so that he can continue to love him. (Source: MU, edited)
Full details on MyAnimePulseFrequently Asked Questions
Where can I watch I'll Live a Long Life to Dote on My Favorite Stepbrother! legally?
Right now, I'll Live a Long Life to Dote on My Favorite Stepbrother! is on OceanVeil. 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 I'll Live a Long Life to Dote on My Favorite Stepbrother! on Netflix or Crunchyroll?
Can't confirm either right now. Both platforms rotate their catalogs pretty often, so it's worth searching directly on each one.
Is I'll Live a Long Life to Dote on My Favorite Stepbrother! 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 I'll Live a Long Life to Dote on My Favorite Stepbrother!.
Can I watch I'll Live a Long Life to Dote on My Favorite Stepbrother! 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.