Watch Oh Boy, Was I Wrong About Her (2026) Free Online

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 is a 2026 animation and comedy TV series starring Ikumi Hasegawa, Shunichi Toki and Miharu Hanai. The series has 1 season and 12 episodes. Viewers rate it 6.8/10 on TMDB based on 13 votes.

  • First aired: 2026-07-06
  • Seasons: 1
  • Episodes: 12
  • Status: Ended
  • Genres: Animation, Comedy
  • TMDB rating: 6.8/10

Oh Boy, Was I Wrong About Her cast

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

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