The English language dub by ADV Films was entirely improvised.
Ghosts at School (alternate title) was translated and dubbed into English by the anime television network, Animax, who, staying true to the original, retained all of the original Japanese plot, character and dialog details, broadcasting the series uncensored and unedited within its respective networks across the world, including Southeast Asia and the Indian Subcontinent
The original third episode (Episode 21) of "Ghost Stories" was set to air on November 5th, 2000 and was meant to be the debut episode of the Kuchisake-Onna. However the episode never aired following a series of complaints from parents with children who had palate disorders and cleft lip sent toward the broadcaster after the preview featured at the end credits of the second episode was shown. Since then, the episode featuring the Kuchisake-Onna was never released in future broadcasts, released on DVD, or dubbed in any other language. As of 2019, the only proof of the Kucisake-Onna episode being made public is the original preview featured at the end of the second episode. While the Kuchisake-Onna never received any real screen time on "Ghost Stories", she is one of the many Yokai/Ghosts featured in the end credits of each episode of the series.