A talented kindergarten teacher who was falsely accused of child abuse in her previous life and was disgraced, awakens her memory and returns to her first day on the job. With the pure insight of her "five-year-old" soul and past life experience, she not only has to outwit the hypocritical parents and colleagues who framed her, but also in the extreme struggle with the mysterious and protective principal father, she reveals the secret of her "time travel" and his unknown tenderness.