I'm not sure specifically which 'Cleo and Theo' true story you are referring to. There could be many pairs with these names. Maybe they are two friends who had an adventure together, or perhaps they are siblings with a unique family story.
Theo in 'kings raid theo sub story' is probably a playable character or an important non - playable character in the Kings Raid universe. He might have unique abilities or a special role in the game's lore. His actions and decisions within the sub - story would likely drive the plot forward, whether it's through combat, exploration, or interactions with other characters.
In most 'hermione and theo fanfic', Hermione is often depicted as highly intelligent, strong - willed, and very passionate about knowledge and justice. Theo, on the other hand, is usually shown as a complex character. He may be brooding, having a troubled past from his Slytherin upbringing, but also having a hidden depth of kindness and a desire for something more than the typical Slytherin values.
Theo Galavan is actually an original character created specifically for the TV show and doesn't exist in the comics. The show's creators came up with him to add a unique element to the story.
It depends on how you define 'real'. Some of his stories might be based on real experiences, but they could also have elements of exaggeration or fictionalization for entertainment purposes.
In a fanfiction, Cleo and Deuce could be involved in a mystery at Monster High. Maybe some ancient artifacts are missing from Cleo's collection and Deuce helps her to find out who took them. Their different personalities would play a role. Cleo's bossiness might sometimes clash with Deuce's easy - going attitude, but in the end, they would solve the mystery together.