It depends on your perspective. Some parts of the story might be based on real events or inspirations, but it's likely a fictional creation with elements of imagination.
Typically, a lupe horror novel might have a spooky setting. For example, it could be set in an old, abandoned house or a desolate forest. This kind of setting helps to create an atmosphere of unease.
One Lupe horror story could be about Lupe who got lost in an old, abandoned mansion. As she wandered through the dark hallways, she heard strange whispers. Every door she opened led to a more terrifying scene, like rooms filled with broken dolls that seemed to move on their own. The further she went, the colder it got, until she felt like she was being watched by unseen eyes.
Yes, Ferdinand is loosely based on a children's book of the same name, which might have been inspired by real-life events or concepts, but it's not a direct retelling of a specific true story.
It could be that the story of Ferdinand was banned due to concerns about its message or potential influence on readers. Maybe it was seen as inappropriate for the targeted audience or went against cultural or moral norms.