Overall score 7.4
Rank #1
I'll Live a Long Life to Dote on My Favorite Stepbrother!
Saioshi no Gikei wo Mederu Tame, Nagaikishimasu!
最推しの義兄を愛でるため、長生きします！
Other names 5
- Chinese
- 为了我最爱的义兄，我要长命百岁！
- Also known as
- I’ll Live A Long Life to Adore My Absolute Fave—Currently My Stepbrother
- Also known as
- Saioshi
- Also known as
- さいおし
- Also known as
- 최애 의붓형을 사랑하기 위해, 오래 살겠습니다!
Overall score 5.8/10
Winter 2026#59 (#59 overall)Overall score The overall score is not a simple average but a weighted blend: (w_P·P + w_T·T + v·R) / (w_P + w_T + v)This title: Site scores P = 5.78 (weight 49, 77%); Fan sentiment T = 6.05 (weight 14.7, 23%); Community: No ratings yet (each rating counts as one vote); P: site consensus 5.24 (1,784 votes), shrunk toward the season baseline 6.99 by vote count to 5.78.P is the consensus of site scores (calibrated to one scale), T the sentiment of public comments, R our community's mean. Each part is weighted in “virtual votes”: more votes and comments mean more weight.See the breakdown · Scoring rules in detailSentiment 5.4 · 14% positiveChinese audience 6.7English audience 5.8
- Isekai#8 (#8 in Isekai, Winter 2026)
- Female-Oriented#11 (#11 in Female-Oriented, Winter 2026)
- Romance#17 (#17 in Romance, Winter 2026)
- 2026#216 (#216 in the 2026 ranking)
- Fantasy
- Romance
- #Boys' Love
- #Adoption
- #Cute Boys Doing Cute Things
12 eps · FinishedONA
Imageworks StudioWeb novel adaptationPremiered Jan 3, 20264 min per episodeOverview
Spoiler-free synopsis
转生成穷贵族之子的阿尔巴，在母亲再婚嫁入的公爵家里，被介绍认识的义兄竟然是自己前世的「本命」奥尔西斯。 「我成了本命的义弟！？」然而高兴没多久，他就想起了心爱的义兄失去笑容的原因正是自己…… 为了避开步步逼近的命运，也为了能一直宠爱本命，被众人宠爱的转生少爷将全力扭转命运！温馨治愈的异世界转生少年生活物语。
AI translationTranslated from the Japanese synopsis on Bangumi (opens in a new window); for reference only
貧乏貴族の息子に転生していたアルバ。 母が再婚した公爵家で紹介された義兄は、前世の「最推し」であるオルシスだった。 「俺って最推しの義弟になったの!?」 と喜んだのも束の間、愛する義兄の笑顔が失われる原因が自分にあることを思い出し…!? 迫りくる運命を避けるため、そして最推しを愛で続けるため、 転生愛され令息が、全力で運命を捻じ曲げる！ シリーズ累計17万部を突破した人気作が送る、あったかほのぼの異世界転生ボーイズライフ！
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.
Genres & tags
- Fantasy
- Romance
- #Boys' LoveRelevance 80%
- #AdoptionRelevance 79%
- #Male ProtagonistRelevance 79%
- #Primarily Male CastRelevance 79%
- #FlashRelevance 73%
- #Cute Boys Doing Cute ThingsRelevance 70%
- #Age RegressionRelevance 60%
- #Family LifeRelevance 60%
- #InsekiRelevance 60%
- #LGBTQ+ ThemesRelevance 60%
- #IsekaiRelevance 50%
- #MagicRelevance 40%
- #MetaRelevance 40%
The percentage after a tag is its relevance to this title. 1 more tag that may contain spoilers is hidden; you can reveal them under Viewing notes.
Details
- Format
- ONA · 12 episodes · 4 min per episode
- Status
- Finished
- Aired
- Jan 3, 2026 – Mar 21, 2026
- Studio
- Imageworks Studio
- Source
- Web novel adaptation
- Season
- Winter 2026
- Categories
- IsekaiFantasyRomanceFemale-Oriented
- Official site
- animationid.com (opens in a new window)
Where to WatchOfficial platforms
Prices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsPrices & detailsViewing regionYour saved choiceGuessed from your network location; change it anytimeNetwork location unavailable. Preselected from browser language; confirm your viewing region.Network location unavailable. Default shown; choose your viewing region.
Canada: no confirmed streaming page yet.
United States: no confirmed streaming page yet.
Mainland China: no confirmed streaming page yet.
Taiwan: no confirmed streaming page yet.
Hong Kong: no confirmed streaming page yet.
Singapore: no confirmed streaming page yet.
Malaysia: no confirmed streaming page yet.
South Korea: no confirmed streaming page yet.
United Kingdom: no confirmed streaming page yet.
Australia: no confirmed streaming page yet.
Germany: no confirmed streaming page yet.
France: no confirmed streaming page yet.
Spain: no confirmed streaming page yet.
Italy: no confirmed streaming page yet.
Mexico: no confirmed streaming page yet.
Brazil: no confirmed streaming page yet.
India: no confirmed streaming page yet.
Indonesia: no confirmed streaming page yet.
Philippines: no confirmed streaming page yet.
Thailand: no confirmed streaming page yet.
New Zealand: no confirmed streaming page yet.
Ireland: no confirmed streaming page yet.
Netherlands: no confirmed streaming page yet.
Belgium: no confirmed streaming page yet.
Austria: no confirmed streaming page yet.
Switzerland: no confirmed streaming page yet.
Sweden: no confirmed streaming page yet.
Norway: no confirmed streaming page yet.
Denmark: no confirmed streaming page yet.
Finland: no confirmed streaming page yet.
Portugal: no confirmed streaming page yet.
Poland: no confirmed streaming page yet.
- Amazon Prime VideoSubscription
- HuluSubscription
- U-NEXTSubscription
- Amazon Prime VideoRent
- Amazon Prime VideoDigital purchase
- ABEMAAccess type unknown
- dアニメストアAccess type unknown
- NiconicoAccess type unknown
Other regions & licensing details
- Japan
- ABEMA (title page, opens in a new window)
- Amazon Prime Video (title page, opens in a new window)
- dアニメストア (title page, opens in a new window)
- HuluPlatform homepage (platform homepage, opens in a new window)
- Niconico (title page, opens in a new window)
- U-NEXT (title page, opens in a new window)
- Region not verifiedThese official pages are listed by bangumi-data or AniList, or reported by ANN news, but the source doesn't say in which regions they are available. Whether you can watch there, and at what price, is up to the platform's page.Sources: AniList
Official, licensed options only; the platform's page is what counts. Every row cites its source · checked Sep 26, 2026
What people sayPublic comments from other sites
AI sentiment analysisAn AI model (qwen3:8b) rates each public comment as very positive / positive / mixed / negative / very negative (scored 9.5 / 8 / 6 / 4 / 2), averages them weighted by confidence, site, length, “helpful” votes and date, then shrinks the result toward a neutral 6 (so a few comments can't inflate it).Calibrated to the site-score scale it is 6.05, and it counts toward the overall score by the number of comments (at most 35%).Only the latest ~40 comments per site are read (plus ~50 posts from each forum's episode threads, which weigh less): a sample, not everything. Excerpts are at most 140 characters and belong to their authors; comments that may contain spoilers are not shown. Comments from Chinese sites appear in an AI translation, with the original one click away. Sentiment labels can be wrong. Updated Oct 7, 2026, 06:36.See the score breakdownSentiment score5.4/10
Positive14%
22 comments analyzed: Bangumi 22
No excerpts to show yet (comments that may contain spoilers are not shown).
Mood & content
Source: Derived from community tagsConfidence: low (48%)Updated Sep 24, 2026
0 = barely any, 10 = very pronounced. Values measure how much, not how good, and different viewers feel the same show differently. “No data yet” means the item hasn't been assessed yet, not that it's absent.
Mood
- Light
- Exciting
- Heavy
Relaxing and heartwarming: high
Light
- Relaxing6.8 / 10, levelHigh. Easy to watch, low effort
- HealingNo data yet. Gentle and comforting
- FunnyNo data yet. Density of laughs
- Heartwarming6.2 / 10, levelHigh. Warmth from relationships
Exciting
- HypeNo data yet. Adrenaline and excitement
- TenseNo data yet. Suspense and tension
Heavy
- OppressiveNo data yet. Heavy, stifling atmosphere
- DarkNo data yet. Darkness of setting and themes
- SadNo data yet. Share of sad moments
- BleakNo data yet. Likelihood of a lingering low mood
Emotional intensityNo data yet. How strongly it moves you, either way
Emotional intensity measures how strong the ups and downs are, happy or sad.
Content
Higher = more of itThemes
Action
No data yet. Share of fights and action
Romance6.5
High (6.5 / 10). Weight of romance plotlines
Slice of life6.4
High (6.4 / 10). Share of everyday-life episodes
Harem
No data yet. Harem dynamics around the lead
Sensitive content· may be upsetting; judge by your own comfort level
Fan service
No data yet. Suggestive shots and fan service
Violence
No data yet. Intensity of violence
Gore
No data yet. Blood and graphic injury
Character death
No data yet. Likelihood of major character deaths
Horror
No data yet. Scares and horror
Psychological stress
No data yet. Mental torment and anxiety
Betrayal
No data yet. Betrayal plotlines
Heartbreak
No data yet. Deliberately heart-wrenching arcs
Style
ComplexityNo data yet
(0 = Easy to follow, 10 = Mind-bending). Plot complexity and densityPacingNo data yet
(0 = Slow burn, 10 = Fast-paced). 0 = slow burn, 10 = fast-pacedWorld-building6.0
(0 = Simple, 10 = Vast and deep). Depth of the setting
Viewing notes
Spoiler-free by defaultNo spoiler-free viewing notes yet.
Ratings
Updated Oct 7, 2026, 06:36About scores
Overall score The overall score is not a simple average but a weighted blend:
(w_P·P + w_T·T + v·R) / (w_P + w_T + v)This title: Site scores P = 5.78 (weight 49, 77%); Fan sentiment T = 6.05 (weight 14.7, 23%); Community: No ratings yet (each rating counts as one vote); P: site consensus 5.24 (1,784 votes), shrunk toward the season baseline 6.99 by vote count to 5.78.P is the consensus of site scores (calibrated to one scale), T the sentiment of public comments, R our community's mean. Each part is weighted in “virtual votes”: more votes and comments mean more weight.See the breakdown · Scoring rules in detailOverall score 5.8/10
Score breakdownThe three parts are weighted in “virtual votes”: the more site votes and analyzed comments, the more weight that part gets. Fan sentiment is capped at 35%, and each AniRanking rating counts as one vote. Full rules
- Site scores5.7877%Consensus of 1,784 site votes (calibrated to one scale and shrunk toward the global baseline by vote count)
- Fan sentiment6.0523%22 comments, average 4.73 (the sentiment score shown, 5.4, is also shrunk toward neutral), calibrated against comparable titles to 6.05
- CommunityNot counted0%No ratings yet (each rating counts as one vote)
Site scoresThe site consensus is 5.24 (1,784 votes, weighted by site reliability × log of votes); shrunk toward the season baseline 6.99 by vote count, it becomes 5.78. Sites score differently (Bangumi runs low, bilibili high), so each is first calibrated to one scale using titles rated on both it and AniList, then combined; sites with fewer than 100 votes are ignored.
Raw → calibrated to one scale| Site | Raw score | Votes | Calibrated |
|---|---|---|---|
| AniList (external link, opens in a new window)Reference site | 51/100 | 372 votes | 5.1 |
| MyAnimeList (external link, opens in a new window)Calibrated to the AniList scale | 5.8/10 | 1,412 votes | 5.3 |
| Bangumi (external link, opens in a new window)Fewer than 100 votes, not counted | 4.5/10 | 57 votes | Not counted |
| bilibiliNo data | — | — | Not counted |
Related
Isekai ranking · Winter 2026
Full Isekai ranking →
HELL MODE: The Hardcore Gamer Dominates in Another World with Garbage Balancing
Hell Mode: Yarikomi-zuki no Gamer wa Haisettei no Isekai de Musou Suru
Genres: ActionAdventureOverall score 7.2
Rank #2
Isekai Office Worker: The Other World's Books Depend on the Bean Counter
Isekai no Sata wa Shachiku Shidai
Genres: AdventureFantasyOverall score 6.8
Rank #3
Overall score 6.8
Rank #4
I'll Live a Long Life to Dote on My Favorite Stepbrother!
Saioshi no Gikei wo Mederu Tame, Nagaikishimasu!
This titleGenres: FantasyRomanceOverall score 5.8
Rank #8
Similar titles this season
Isekai Office Worker: The Other World's Books Depend on the Bean Counter
Isekai no Sata wa Shachiku Shidai
Genres: AdventureFantasyOverall score 6.8
Rank #31
The Villainess Is Adored by the Prince of the Neighbor Kingdom
Akuyaku Reijou wa Ringoku no Outaishi ni Dekiai Sareru
Genres: FantasyRomanceOverall score 5.6
Rank #61
Overall score 7.4
Rank #17
Overall score 6.7
Rank #35
There was a Cute Girl in the Hero’s Party, so I Tried Confessing to Her
Yuusha Party ni Kawaii Ko ga Ita no de, Kokuhaku Shitemita.
Genres: AdventureComedyOverall score 6.0
Rank #56
Overall score 6.8
Rank #34