Series · 2026 · Animation
Seven years after making a childhood promise to always be friends, Hayato is reunited with his formerly tomboyish pal Haruki at a city high school–only now, Haruki has transformed into the girl every guy dreams about! While Haruki’s looks may have changed, with Hayato, she’s still the same pal he remembers. Despite years apart, their promise and feelings remain and deepen into something stronger.
1 season · 12 episodes

Episode 01
Beginning with a Summer Day
Childhood buddies Hayato and Haruki are reunited when Hayato moves to Tokyo and sees Haruki at his new school.

Episode 02
I Really Suck at Girl Talk
As the two old friends continue to get reacquainted, Haruki starts teasing Hayato for not owning a cell phone.

Episode 03
Produced by Himeko
Himeko meets Haruki for the first time in years and decides to take her shopping to help update her wardrobe.

Episode 04
Small Hands, Broad Shoulders
Hayato and Haruki go phone shopping together and then Haruki ends up spending the night at Hayato's apartment.

Episode 05
Discipline, Young Maiden
Himeko and Haruki decide to go on a diet, so Hayato starts asking friends for health-conscious recipe ideas.

Episode 06
What About Your Camouflage!?
Hayato steps in when he sees Kazuki trying to make a move on Haruki, who keeps dropping her nice girl facade.

Episode 07
You're Special
Hayato visits his mother in the hospital and then makes plans with Haruki and Himeko to go somewhere together.

Episode 08
Where the Heart Is
Hayato, Haruki, and Himeko go to the movies as planned but end up catching an unexpected guest along the way.

Episode 09
Truly Special
Haruki opens up about family issues after her rough night and Kazuki keeps trying to stir up drama at school.

Episode 10
We Are Friends, Right?
Himeko sets up a group chat with Saki from Tsukinose and Hayato and his pals make plans for a day at the pool.

Episode 11
As Long As We're Together
Hayato and Haruki adjust to their new job and the girls shop for new swimsuits to wear on their big pool date.

Episode 12
A Fresh Start
Hayato and friends enjoy their long-awaited pool day and then take a trip to revisit their roots in Tsukinose.
based on 13 votes
Seven years after making a childhood promise to always be friends, Hayato is reunited with his formerly tomboyish pal Haruki at a city high school–only now, Haruki has transformed into the girl every guy dreams about! While Haruki’s looks may have changed, with Hayato, she’s still the same pal he remembers. Despite years apart, their promise and feelings remain and deepen into something stronger.
5 principal cast
Oh Boy, Was I Wrong About Her is available to stream on Flicksy via 6 verified sources, aggregated from publicly available embed providers. The animation has 1 season and 12 total episodes, rated 6.8/10 by 13 viewers.
Oh Boy, Was I Wrong About Her has 1 season with 12 episodes in total.
Oh Boy, Was I Wrong About Her has ended and is no longer in production.
Oh Boy, Was I Wrong About Her airs on TOKYO MX.
Oh Boy, Was I Wrong About Her first aired on July 6, 2026.
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