Alba
main character
ONA
5.1
My TrackerPLANNING
Episode: 0 / 12
My Score:
Anime DetailsFINISHED
- Format
- web series (ONA)
- Episodes
- 12
- Episode length
- 4 min
- Total watch time
- 48 minutes
- Status
- Finished
- Aired
- January 3, 2026 – March 21, 2026
- Season
- Winter 2026
- Source
- Other source
- Studio
- Imageworks Studio
- Original creator
- Tenma Asahi
- Country
- Japan
- AniList score
- 51/100
Estimated watch time
0h 48m
⚡ 3 days at 5 eps/day
Tags & Tropes
Boys' Love80%Adoption79%Male Protagonist79%Primarily Male Cast79%Age Gap73%Flash73%Cute Boys Doing Cute Things70%LGBTQ+ Themes60%Age Regression60%Family Life60%
ONAFINISHED2026 WINTER5.1 / 10 AniList score
I'll Live a Long Life to Dote on My Favorite Stepbrother!
最推しの義兄を愛でるため、長生きします！• Saioshi no Gikei wo Mederu Tame, Nagaikishimasu!
Synopsis
The story of Saioshi no Gikei wo Mederu Tame, Nagaikishimasu! follows the struggle of a player to protect his favorite character, who gets reincarnated as his older brother-in-law in a simulation raising game - however, the player is reincarnated as the younger brother who was meant to die. (Source: Anime News Network)
Should you watch I'll Live a Long Life to Dote on My Favorite Stepbrother!?
I'll Live a Long Life to Dote on My Favorite Stepbrother! has been poorly received, with an average AniList score of 51/100 — 20% of 386 ratings are 8/10 or higher.
Of the 1.5K AniList users who started it, 23.9% dropped it, so it is frequently dropped; 548 have finished it.
At about 48 minutes in total, it is a short commitment — a weekend binge.
Best for viewers who enjoy Fantasy, Romance — especially boys' love, adoption, male protagonist, primarily male cast.
Where to Watch Officially
Availability, audio and subtitles vary by region and service.
Episodes
44 episodes are listed.
Trailer
Watch on YouTubeMain cast & voice actors
Creators & key staff
- Original creator
- Tenma Asahi
- Series composition
- Izumi Tezuka
Related entries
If you like I'll Live a Long Life to Dote on My Favorite Stepbrother!
I'll Live a Long Life to Dote on My Favorite Stepbrother! FAQ
How many episodes does I'll Live a Long Life to Dote on My Favorite Stepbrother! have?
I'll Live a Long Life to Dote on My Favorite Stepbrother! has 12 episodes of about 4 minutes each, roughly 48 minutes in total.
Is I'll Live a Long Life to Dote on My Favorite Stepbrother! finished?
Yes. I'll Live a Long Life to Dote on My Favorite Stepbrother! has finished airing — the final episode aired March 21, 2026.
Is there a season 2 of I'll Live a Long Life to Dote on My Favorite Stepbrother!?
No sequel is listed for I'll Live a Long Life to Dote on My Favorite Stepbrother! as of October 2026.
Is I'll Live a Long Life to Dote on My Favorite Stepbrother! based on a other source?
Yes. I'll Live a Long Life to Dote on My Favorite Stepbrother! adapts the other source by Tenma Asahi.
Who animated I'll Live a Long Life to Dote on My Favorite Stepbrother!?
I'll Live a Long Life to Dote on My Favorite Stepbrother! was animated by Imageworks Studio.
Where can I watch I'll Live a Long Life to Dote on My Favorite Stepbrother!?
I'll Live a Long Life to Dote on My Favorite Stepbrother! is listed on OceanVeil. Availability varies by region — check the streaming links on this page.