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About Oh Boy, Was I Wrong About Her

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.

Oh Boy, Was I Wrong About Her runs for 1 season. Every episode page keeps the show's order, so you can watch from the pilot to the finale without hunting for the next link. Episodes are bought individually for 1 credit.

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Episodes

Season 1 · 12 episodes

Beginning with a Summer Day

Childhood buddies Hayato and Haruki are reunited when Hayato moves to Tokyo and sees Haruki at his new school.

2026-07-06 25mNow playing

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.

2026-07-13 24m

Produced by Himeko

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

2026-07-20 24m

Small Hands, Broad Shoulders

Hayato and Haruki go phone shopping together and then Haruki ends up spending the night at Hayato's apartment.

2026-07-27 24m

Discipline, Young Maiden

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

2026-08-03 24m

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.

2026-08-10 25m

You're Special

Hayato visits his mother in the hospital and then makes plans with Haruki and Himeko to go somewhere together.

2026-08-17 24m

Where the Heart Is

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

2026-08-24 24m

Truly Special

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

2026-08-31 24m

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.

2026-09-07 24m

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.

2026-09-14 24m

A Fresh Start

Hayato and friends enjoy their long-awaited pool day and then take a trip to revisit their roots in Tsukinose.

2026-09-21 24m

Season 1

Oh Boy, Was I Wrong About Her FAQ

How much does it cost to watch Oh Boy, Was I Wrong About Her?

Episodes cost 1 credit each. Credits are $1 each, so a full season costs the number of episodes in credits. Each episode you unlock stays in your account permanently.

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How many seasons of Oh Boy, Was I Wrong About Her are there?

Oh Boy, Was I Wrong About Her has 1 season on Cineby, with 12 episodes in total. Start with season 1 below.

Where should I start watching Oh Boy, Was I Wrong About Her?

Start with season 1, episode 1. The episode list on this page keeps the order, and the player moves to the next episode when one ends.

Can I watch Oh Boy, Was I Wrong About Her with subtitles on my phone?

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