Oh Boy, Was I Wrong About Her (2026) Web Series — Cast, Story & Where to Watch

Oh Boy, Was I Wrong About Her (2026) is a animation, comedy web series in Japanese. On New MovieLinkBD: full story, cast, ratings, season & episode guide, official trailer and where to watch Oh Boy, Was I Wrong About Her online in HD.

Oh Boy, Was I Wrong About Her — Storyline

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.

Cast & Crew

Starring: Ikumi Hasegawa, Shunichi Toki, Miharu Hanai, Natsumi Haruse, Fuka Izumi

Oh Boy, Was I Wrong About Her — Series Details

First Air Date	2026-07-06
Seasons	1
Episodes	12
Genre	Animation, Comedy
Language	Japanese
Network	Tokyo MX
Status	Returning Series
Rating	8.7/10 (3 votes)

Oh Boy, Was I Wrong About Her — Episode Guide

Season 1

E1: Beginning with a Summer Day (2026-07-06) — Childhood buddies Hayato and Haruki are reunited when Hayato moves to Tokyo and sees Haruki at his new school.
E2: I Really Suck at Girl Talk (2026-07-13) — As the two old friends continue to get reacquainted, Haruki starts teasing Hayato for not owning a cell phone.
E3: Produced by Himeko (2026-07-20) — Himeko meets Haruki for the first time in years and decides to take her shopping to help update her wardrobe.
E4: Small Hands, Broad Shoulders (2026-07-27) — Hayato and Haruki go phone shopping together and then Haruki ends up spending the night at Hayato's apartment.
E5: Discipline, Young Maiden (2026-08-03) — Himeko and Haruki decide to go on a diet, so Hayato starts asking friends for health-conscious recipe ideas.
E6: What About Your Camouflage!? (2026-08-10) — Hayato steps in when he sees Kazuki trying to make a move on Haruki, who keeps dropping her nice girl facade.
E7: You're Special (2026-08-17) — Hayato visits his mother in the hospital and then makes plans with Haruki and Himeko to go somewhere together.
E8: Where the Heart Is (2026-08-24) — Hayato, Haruki, and Himeko go to the movies as planned but end up catching an unexpected guest along the way.
E9: Truly Special (2026-08-31) — Haruki opens up about family issues after her rough night and Kazuki keeps trying to stir up drama at school.
E10: We Are Friends, Right? (2026-09-07) — Himeko sets up a group chat with Saki from Tsukinose and Hayato and his pals make plans for a day at the pool.
E11: As Long As We're Together (2026-09-14) — Hayato and Haruki adjust to their new job and the girls shop for new swimsuits to wear on their big pool date.
E12: Episode 12 (2026-09-21)