One idea could be an OC who is a new student at Monster High and has a unique ability that no one else has, like the power to communicate with long - forgotten spirits. This could lead to all sorts of adventures as she tries to fit in while also dealing with the mystery of these spirits.
A plot could involve an OC who is half - human and half - monster trying to find their place in the Monster High world. They might face discrimination from both sides at first, but through a series of events, they end up bringing the two worlds closer together. For example, they could organize an event where humans and monsters interact in a positive way.
Another plot could revolve around an OC who is a scientist. He discovers a new type of monster girl that no one has seen before. This discovery causes a stir in the Monster Musume community. As he tries to study and understand this new creature, he forms a special bond with her, and they face challenges together, like dealing with those who want to use the new discovery for their own gain.
One idea could be a character from Monster High discovers she's pregnant and has to deal with the reactions of her friends and family. For example, Draculaura might be pregnant and she's worried about how her vampire father will react, since vampires have their own traditions regarding family and new life.
Another plot could revolve around a human who discovers they have a hidden connection to the Monster High world. Maybe they find out they are related to a monster in some way. This discovery leads them on a journey of self - discovery as they learn about their family's past and the unique heritage that comes with it. They also have to deal with the reactions of their human friends and family who might not be so accepting at first.
The OC could be an artist who is commissioned to paint portraits of the monster girls. Through this process, he gets to know their personalities and stories. This could lead to him becoming a sort of advocate for them in the human world. Another plot could be that the OC is a delivery person who always delivers to a monster girl - only establishment. He becomes friends with the regulars and gets involved in their community. A different idea is that the OC is a gardener and the monster girls' habitat is being damaged. He uses his skills to restore their environment and in the process, forms a deep bond with them.
A plot idea could be that Cleo and Deuce participate in a school - wide competition. They have to work together against other pairs from Monster High. This would test their relationship as they have different ways of approaching things. Cleo is more of a strategic planner, while Deuce is more about improvising.
Well, a great plot idea might be that Holt and Jackson accidentally switch personalities completely. This would lead to all kinds of hilarious and also challenging situations at school. For example, Holt, who is usually more out - there, has to be super studious like Jackson, and Jackson has to deal with Holt's popularity and musical gigs. Or perhaps they could go on a journey to find a way to reverse it, all while dealing with their friends' reactions.
One idea could be that Draculaura and Clawd go on a secret adventure in the Forbidden Forest near Monster High. They discover a hidden portal that leads to a world where vampires and werewolves have a long - forgotten feud. They must work together to bridge the gap between their species in this new world to find their way back home.
Another plot could be that there is a threat to both the Naruto world and Monster High. Naruto teams up with the Monster High crew, and during their adventures, some of the female characters start to develop feelings for him. He is constantly saving them with his Rasengan and other jutsu, and his kind heart makes them fall for him one by one, creating a harem.
One idea could be that Jackson and Holt have to work together to solve a mystery in Monster High. Maybe a strange event is occurring and their combined skills, Jackson's intelligence and Holt's boldness, are needed to figure it out.
One idea could be a story about a new student at Monster High who has a unique and mysterious power that no one has seen before. This new character could struggle to fit in while also trying to figure out the origin of their power.