An Observation Log of My Fiancée Who Calls Herself a Villainess
Jishou Akuyaku Reijou na Konyakusha no Kansatsu Kiroku.
Genres: ComedyFantasy
Overall score 7.6
Rank #17
The Dark History of the Reincarnated Villainess: Yomi, Jealousy, and a Birthday / Iana and Sol's Feverish Day
Tensei Akujo no Kuro Rekishi OVA
転生悪女の黒歴史 OVA
Other names 3
- Also known as
- The Dark History of the Reincarnated Villainess OVA
- Also known as
- TenKuro OVA
- Also known as
- The Dark History of the Reincarnated Villainess Episode 13
Overall score 6.9/10
Not rankedOverall 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 = 6.85 (weight 54, 100%); Fan sentiment: No analyzed comments yet; Community: No ratings yet (each rating counts as one vote); P: site consensus 6.82 (3,747 votes), shrunk toward the season baseline 6.98 by vote count to 6.85.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 detailEnglish audience 6.9
OVA titles are not ranked
- Comedy
- Fantasy
- Romance
- #Shoujo
- #Isekai
- #Villainess
1 ep · FinishedOVA
Studio DEENManga adaptationPremiered Apr 3, 202624 min per episode
The Dark History of the Reincarnated Villainess: Yomi, Jealousy, and a Birthday / Iana and Sol's Feverish DayOverall score 6.9Where to WatchThe Dark History of the Reincarnated Villainess: Yomi, Jealousy, and a Birthday / Iana and Sol's Feverish DayOverall score 6.9Where to WatchOverview
Spoiler-free synopsis
本作为《转生恶女的黑历史》漫画第18卷特装版附赠的蓝光，改编自「Yomi、嫉妒与生日」和「伊安娜与索尔发烧的一天」两篇故事。
AI translationTranslated from the English synopsis on AniList (opens in a new window); for reference only
Blu-ray bundled with a special edition of the 18th volume of the manga adapting the Yomi to Shittou to Tanjoubi and Iana to Sol Netsuppoi Tsuitachi stories.
Blu-ray bundled with a special edition of the 18th volume of the manga adapting the Yomi to Shittou to Tanjoubi and Iana to Sol Netsuppoi Tsuitachi stories.
Genres & tags
- Comedy
- Fantasy
- Romance
- #ShoujoRelevance 66%
- #Female ProtagonistRelevance 50%
- #IsekaiRelevance 50%
- #VillainessRelevance 50%
- #HeterosexualRelevance 20%
- #ParodyRelevance 20%
The percentage after a tag is its relevance to this title. 2 more tags that may contain spoilers are hidden; you can reveal them under Viewing notes.
Ranking positions
Spring 2026 ranking →Not on any ranking yet. OVA titles are not ranked.
Details
- Format
- OVA · 1 episode · 24 min per episode
- Status
- Finished
- Aired
- Apr 3, 2026
- Studio
- Studio DEEN
- Source
- Manga adaptation
- Season
- Spring 2026
- Categories
- IsekaiFantasyRomanceComedyFemale-Oriented
- Official site
- tenkuro-pr.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.
Japan: 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.
Other regions & licensing details
- 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
What people sayPublic comments from other sites
AI sentiment analysisAn AI model 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).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.See the score breakdownNo public comments analyzed for this title yet. Comments from Bangumi, bilibili, AniList and other sites will appear here once collected.
Mood & content
Source: Derived from community tagsConfidence: medium (50%)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
Funny: high
Light
- RelaxingNo data yet. Easy to watch, low effort
- HealingNo data yet. Gentle and comforting
- Funny6.5 / 10, levelHigh. Density of laughs
- HeartwarmingNo data yet. 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 life
No data yet. 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 = 6.85 (weight 54, 100%); Fan sentiment: No analyzed comments yet; Community: No ratings yet (each rating counts as one vote); P: site consensus 6.82 (3,747 votes), shrunk toward the season baseline 6.98 by vote count to 6.85.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 6.9/10
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 scores6.85100%Consensus of 3,747 site votes (calibrated to one scale and shrunk toward the global baseline by vote count)
- Fan sentimentNot counted0%No analyzed comments yet
- CommunityNot counted0%No ratings yet (each rating counts as one vote)
OVA titles are not ranked
Site scoresThe site consensus is 6.82 (3,747 votes, weighted by site reliability × log of votes); shrunk toward the season baseline 6.98 by vote count, it becomes 6.85. 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 | 69/100 | 795 votes | 6.9 |
| MyAnimeList (external link, opens in a new window)Calibrated to the AniList scale | 7.0/10 | 2,952 votes | 6.8 |
| BangumiNo data | — | — | Not counted |
| bilibiliNo data | — | — | Not counted |
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