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 animation and comedy TV series from TOKYO MX that premiered in 2026. Ikumi Hasegawa, Shunichi Toki, Miharu Hanai, Natsumi Haruse and Fuka Izumi star in the series. The show has 1 season and 12 episodes and is currently listed as "Ended" with the most recent episode airing on September 21, 2026. Viewers rate it 6.8/10 on TMDB from 13 votes.
MyFlixer has the complete run of Oh Boy, Was I Wrong About Her in HD. Use the selectors above to jump to any episode, then press Watch Now to start streaming free. Fans of the show also watch Sakura Trick, Himouto! Umaru-chan and Is the Order a Rabbit?.
Where to watch Oh Boy, Was I Wrong About Her Season 1 Episode 1 online free →