Board Thread:New on Idea Wiki/@comment-24839525-20180419164028/@comment-30134917-20180419215222

Okay, so. A massive amount of years ago Earth was made, but at the same time, the Underside was created, which is a different plane of existence that lays under Earth. The people who live in the Underside have their own words for things, for example, they call forks "little tridents", animals "abnormals", and humans "upsiders". They know humans exist because the people of the Underside aren't the only ones living there, there are also three Titans named Metoss, Yuliana, and Ileck who were originally from the Upside and inspired many Upsider legends. But the three Titans weren't spawned from nothing, their father was known as Uslax and in his main story, it is described that he mated with the first three Undersiders leading to the births of the three half-brothers. These four Titans are the main gods of the religion in the Underside, known as "W̃ëë".

Unlike most stories about an upside down world, the Underside isn't actually a dark or "evil" reflection of our own world, in fact, they have their own culture and many different traditions, including a very small but extremely important thing to Undersiders: they always wipe their feet before entering someone's home and if an Undersider doesn't it is a sign that they hate the person whose home they are about to enter. Also, only very important people have mouths (kings, mayors, etc) meaning that the Undersiders have their own method of communication, where they make very small body movements to show an emotion. If they tense their muscles they're angry, if they don't break eye contact while listening to someone they're extremely invested in whatever they're saying, so on and so forth.

The Underside appears very depressing and creepy, being black in appearance, but that's because colour is a foreign concept to them and because of that whenever something is more colourful than the rest of the world it's alien and abnormal, and because of that, the Undersiders are actually slightly afraid of Upsiders.

All this is about culture and stuff because I don't like giving away spoilers BTW.