Mythology. (Classical Mythology. https://proseandcommas.weebly.com/2-classical-mythology.html)
1. A collection of myths, especially one belonging to a particular religious or cultural tradition.
2. A set of stories or beliefs about a particular person, institution, or situation, especially when exaggerated or fictitious.
Fiction. (Definition from Oxford University Press 2019)
A narrative form, in any medium, consisting of people, events, or places that are imaginary—in other words, not based strictly on history or fact