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Oh Boy, Was I Wrong About Her

Seven years after a childhood pact to stay friends, Hayato bumps into his old companion Haruki at a bustling city high school. The once‑tomboyish Haruki has blossomed into a strikingly beautiful girl, turning heads wherever she goes. Yet to Hayato, she remains the same loyal friend he once knew, and their long‑standing promise begins to feel like something more.

The series blends light‑hearted humor with gentle romance, exploring how youthful vows evolve amid teenage insecurities and newfound attractions. Its charm lies in the contrast between Haruki’s dazzling exterior and the unchanged bond she shares with Hayato, offering a fresh take on school‑yard love and the awkward joy of growing up together.