Series synopsis
Oh Boy, Was I Wrong About Her, also known as 転校先の清楚可憐な美少女が、昔男子と思って一緒に遊んだ幼馴染だった件 is a Japanese animation comedy television series that premiered on Tokyo MX on July 6, 2026. It stars Ikumi Hasegawa.
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.
Premise
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 and characters
Leading cast
- Ikumi Hasegawa as Haruki Nikaido (voice)
Episodes
This series spans 1 season with 2 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 2 | July 6, 2026 | July 13, 2026 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Beginning with a Summer Day Childhood buddies Hayato and Haruki are reunited when Hayato moves to Tokyo and sees Haruki at his new school. |
July 6, 2026 |
| 2 | Episode 2 | July 13, 2026 |
Production
Release
| Original network/platform | Tokyo MX |
|---|---|
| First aired | July 6, 2026 |
| Status | continue |