Kids and ghosts. When young Satsuki finds an old book of spells from her passed away mother, she gains the power to fight ghosts that are haunting her new school. With the help of her friends, and of a really wicked devil cat, she must protect everyone around her or be haunted for ever more. 
(Source: Anime News Network)

Gakkou no Kaidan SP is a prequel season of Gakkou no Kaidan anime. It is considered a season 2 of Gakkou no Kaidan. 
 
In this anime the ghost are presented more friendly, they live in abandoned theater (with an invisible audience). In this theater are presented short stories of terror, all of them based in Japaneses tales.

A headless rider terrorizes the town on the anniversary of what was his death, seeking to decapitate people like himself. When the ghost turns his headlights upon Satsuki, the gang needs to find a way to put him to sleep again, and quick! 
 
(Source: Crunchyroll) 
 
Note: This episode takes place before the final episode of the TV series, "Farewell, Amanojaku — The Descent of Ohma."

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