Oh Boy, Was I Wrong About Her
転校先の清楚可憐な美少女が、昔男子と思って一緒に遊んだ幼馴染だった件
Heat
30 ▼4 (2026-09-23)
Episode buzz log
- Ep 2 5 posts
- Ep 3 15 posts 🔥 Most buzz
- Ep 4 7 posts
- Ep 5 10 posts
- Ep 6 13 posts
- Ep 7 15 posts 🔥 Most buzz
- Ep 8 8 posts
- Ep 9 15 posts 🔥 Most buzz
- Ep 10 14 posts
- Ep 11 12 posts
- Ep 12 11 posts Latest
Tallied from live-watch volume on X during each broadcast.
Season Heat records
- Fall 2026 This season so far Best #15 ・ Peak heat 74.8
- Summer 2026 Best #8 ・ Final #13 ・ Peak heat 83.3
What viewers are saying
OP 2
Keywords from live-watch reactions. Does not include original posts.
29,000 followers
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Oh Boy, Was I Wrong About Her is a comedy romance anime adapted from a light novel. The story follows a protagonist whose initial assumptions about a particular girl are challenged, leading to humorous and romantic developments. Produced by studio project No.9 and directed by Chuanfeng Xu, the series explores the gap between perception and reality in relationships.
Where to watch PR
Prime Video ↗
Global
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Music PR
🔥 Anisong heat 35 -1 498K views +12K this week
🔥 Anisong heat 9 +1.1 351K views +1,709 this week
🔥 Hot characters in this work
-
Saki Murao Official-led -
Himeko Kirishima Official-led -
Haruki Nikaido Official-led -
Hayato Kirishima Official-led
🎙 Voice actors rising in this work
- Ikumi Hasegawa Haruki Nikaido Role heat 15
- Shunichi Toki Hayato Kirishima Role heat 15
- Miharu Hanai Himeko Kirishima Role heat 15
- Fuuka Izumi Saki Murao Role heat 15
Database
- Source
- Light novel
- Episodes
- 12 eps
- Studio
- project No.9
- Original creator
- Yu Hibari
- Director
- Chuanfeng Xu
- Series composition
- Hitomi Mieno
- Character design
- N Nei Kurahashi
- Sound director
- Daiki Yamaki
- Voice actor
- Shunichi Toki(Hayato Kirishima)Ikumi Hasegawa(Haruki Nikaido)Miharu Hanai(Himeko Kirishima)Natsumi Haruse(Minamo Mitake)Fuuka Izumi(Saki Murao)
Merch picksPRRelated items for this title
BD/DVD[With Bonus] The Transfer Student's Pure and Pretty Girl Was the Childhood Friend I Used to Play with as a Boy Blu-ray BOX (First Press Specification) [Blu-ray]¥26,895
BD/DVD[Bonus Included] The Girl I Thought Was a Boy Was Actually a Beautiful and Innocent Transfer Student Blu-ray BOX (First Press) [Blu-ray]¥27,885
BD/DVD[Bonus Included] The Girl I Thought Was a Boy Was Actually a Beautiful and Innocent Transfer Student Blu-ray BOX (First Press) [Blu-ray]¥28,050
BD/DVDFree Shipping [Early Purchase Bonus Included] The Girl I Thought Was a Boy Was Actually a Beautiful and Innocent Transfer Student Blu-ray BOX / Animation [Blu-ray] [Return Type A]¥27,390
BD/DVDThe Girl I Thought Was a Boy Was Actually a Beautiful and Innocent Transfer Student Blu-ray BOX [BLU-RAY DISC]¥29,819
BD/DVDThe Pure and Lovely Girl at My New School Was My Childhood Friend (Thought to Be a Boy) Blu-ray Box [Blu-ray] [Hibari Yu]¥25,740
🔎 Search goods stores for this title PR 🌏 CDJapan ↗
Latest news
- Check here for broadcast & streaming info ↗
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- ✅ See the official site for full details! ↗
- TV anime Tenbin Ep. 11 airs on BS Fuji tonight! Ep. 11: 'Together, the Two of Them' — BS Fuji 24:30 today ↗
- TV Anime Tenbin now airing! [URL] Every Monday 11:30 PM on TOKYO MX and Sun TV! Every Monday midnight on dAnimeStore, ABEMA, U-NEXT, and Anime Houdai! Every Wednesday 12:30 AM on BS Fuji! ↗
- Tenbin Episode 4 Finished on BS Fuji – Early Streaming on d Anime Store, ABEMA, U-NEXT, Anime Hodai; Unlimited from Fridays at 24:00 ↗
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- TV Anime Tenbin Episode 4 Streaming Info! ↗
More merchPR
BD/DVDRelease 11/27/2026 - Happinet 'The Beautiful Girl at My New School Was Actually My Childhood Friend (Whom I Thought Was a Boy)' Blu-ray Box [Early-Bird Bonus]¥29,700
Merch"That Beautiful Girl at My New School Was Actually My Childhood Friend I Thought Was a Boy" B2 Tapestry – Nikaido Haruki (Summer Teaser Visual)¥3,300
Merch[Used] Anime Merchandise Booklet - The Pure, Beautiful Girl at My New School Is Actually My Childhood Friend I Thought Was a Boy Vol. 4 (Animate Purchase Bonus Message Paper) / Ōyama Juna¥370
Merch[Pre-order] AzuMaker “The dainty beauty at my new school was the childhood friend I used to play with, who I thought was a boy” Character Rubber Mat: Nikaido Haruki Teaser Visual Summer Ver. [Goods] [Scheduled for November 2026 release]¥3,933
Merch[Pre-order] AzuMaker “The dainty beauty at my new school was the childhood friend I used to play with, who I thought was a boy” T-shirt: Nikaido Haruki Teaser Visual Summer Ver., XL size [Goods] [Scheduled for November 2026 release]¥4,211
Merch[Pre-order] AzuMaker “The dainty beauty at my new school was the childhood friend I used to play with, who I thought was a boy” B2 Tapestry: Nikaido Haruki Teaser Visual Summer Ver. [Goods] [Scheduled for November 2026 release]¥3,747
Collabs
Upcoming 1
Past collab history 1
- Pop-up ✨TV Anime POP-UP in-store sales for The Pure and Lovely Transfer-Student Beauty Who Turned Out to Be My Childhood Friend from Back When I Thought She Was a Boy✨ ↗ 8/21 〜 9/6 / AKIHABARA Gamers Honten (Main Store), Gamers Namba, Gamers Nagoya, Gamers Sendai, Gamers Kokura
What to buy PR
🧸 Buy
- Merch [Pre-order] AzuMaker “The dainty beauty at my new school was the childhood friend I used to play with, who I thought was a boy” T-shirt: Nikaido Haruki Teaser Visual Summer Ver., L size [Goods] [Scheduled for November 2026 release] ¥4,211
- Merch [Pre-order] AzuMaker “The dainty beauty at my new school was the childhood friend I used to play with, who I thought was a boy” Clear File: Nikaido Haruki Teaser Visual Summer Ver. [Goods] [Scheduled for November 2026 release] ¥1,428
- Merch [Pre-order] AzuMaker “The dainty beauty at my new school was the childhood friend I used to play with, who I thought was a boy” Mug: Nikaido Haruki Teaser Visual Summer Ver. [Goods] [Scheduled for November 2026 release] ¥2,355
- Merch [Pre-order] AzuMaker “The dainty beauty at my new school was the childhood friend I used to play with, who I thought was a boy” T-shirt: Nikaido Haruki Teaser Visual Summer Ver., M size [Goods] [Scheduled for November 2026 release] ¥4,211
- Merch [Pre-order] AzuMaker “The dainty beauty at my new school was the childhood friend I used to play with, who I thought was a boy” Clear File: Haruki, Himeko, Minamo & Saki [Goods] [Scheduled for November 2026 release] ¥1,428
- Merch She's My Childhood Friend (But I Mistook Her for a Boy) Character Rubber Mat — Nikai-do Haruki Teaser Visual (Summer) ¥3,520
- Merch She's My Childhood Friend (But I Mistook Her for a Boy) T-shirt — Nikai-do Haruki Teaser Visual (Summer) Size L ¥3,850
- Merch "That Beautiful Girl at My New School Was Actually My Childhood Friend I Thought Was a Boy" T-Shirt – Nikaido Haruki (Summer Teaser Visual, XL) ¥3,850
- Merch "That Beautiful Girl at My New School Was Actually My Childhood Friend I Thought Was a Boy" T-Shirt – Nikaido Haruki (Summer Teaser Visual, M) ¥3,850
- Merch "That Beautiful Girl at My New School Was Actually My Childhood Friend I Thought Was a Boy" Mug – Nikaido Haruki (Summer Teaser Visual) ¥1,650
Prices are as of retrieval time. Links may include affiliate links.
🎞️ From the same creators
Past works by the same studio or director. Play the trailer, or open the work page.
