Maybe the OC has a secret past related to karate that no one knows about. Cheng discovers this by accident and they form a pact to keep it a secret. In the process, they become closer friends. They could also team up to compete against a rival dojo, with the OC teaching Cheng some new moves that give them an edge in the competition.
One interesting plot idea could be that the OC is a new student at the dojo. Cheng initially sees the OC as a threat to his status but as they train together, they start to understand each other more. For example, the OC might have a unique fighting style that Cheng is initially dismissive of but later tries to incorporate into his own techniques.
A plot where Harry uses karate to defeat Voldemort in a hand - to - hand combat after his magic is temporarily blocked would be very interesting.
Perhaps the OC is a new kid in town who is initially scared of Kat but then discovers a hidden connection between them. Maybe they both come from the same alien origin, which changes the way they interact and fight.
Well, an OC could be a tech - savvy kid who creates a new app that becomes super popular at school. But there are some glitches that only Greg seems to notice, and they have to work together to fix it. Or perhaps an OC who is a really good skateboarder. He challenges Greg's friends to a skateboarding competition, which causes a rift between the friends at first because some are better than others. Then they all learn to work together to improve. Also, an OC could be a girl who loves reading and starts a book club. Greg's mom forces him to join, and he tries to find ways to make it more fun by adding his own wacky rules.
First, do some research on the Karate Kid universe. Know the rules of karate in that world, the dojo's culture, and Cheng's character traits. Then, create a well - rounded OC. Give the OC clear goals, strengths, and weaknesses. For example, if the OC is a shy person, show how they overcome their shyness in the karate environment.
Well, a cool plot could involve time travel in the karate games' universe. The characters could go back in time to learn from the karate masters of old. Also, a story about a cursed karate move that causes strange things to happen to those who use it could be really interesting. And what about a plot where the karate games are invaded by characters from another fighting game genre and they have to team up to defend their territory?
Maybe Cheng is a young karate prodigy. He meets a girl from a different martial arts school. At first, they are rivals, but as they interact more during competitions and joint training sessions, they develop feelings for each other. Their love story could be intertwined with their attempts to bridge the gap between their two different martial arts styles and cultures. For example, Cheng might be from a more traditional karate background, while the girl is from a more modern and experimental martial arts approach. Their love could be about understanding and respecting each other's differences in the martial arts world and in life in general.
The OC could be a pirate from a rival crew. They meet Kid during a battle. Instead of fighting to the death, they end up in a situation where they have to team up against a greater enemy. During this time, they get to know each other better, and a relationship between Kid and the OC starts to form.
One common theme is self - discovery. Cheng often has to figure out his place in the karate world and his own abilities. Another theme is friendship. He might form new bonds or repair old ones through his karate experiences.
Well, the Karate Kid 2 story takes Daniel and Mr. Miyagi to Okinawa. Once there, Daniel has to deal with some local bullies who are not happy about his presence. Meanwhile, Mr. Miyagi has his own history to confront in his hometown. It's a story full of action, friendship, and discovery. Daniel gets into trouble with a local karate expert who has his own grudges and ideas about who should be in control in the karate world. Through all this, Daniel grows as a person and a martial artist.
One idea could be exploring MK's training in more detail. Show his struggles and how he overcomes them. For example, he might face a new and extremely powerful demon that forces him to master a new skill quickly.