Another interesting concept is an oc who is not a skater initially but gets drawn into the world of 'S' because of a personal connection. Maybe they are a photographer who wants to document the amazing skating feats at 'S', and through that, they end up learning to skate themselves and becoming part of the community. They could face challenges like not being accepted at first due to not being a 'true skater', but gradually earn respect.
You could also have an oc who has a special ability related to skating, like being able to sense the best lines on a course before even starting. This oc could be a bit of an outcast because of this strange ability, but as they participate in races at 'S', they start to use it to their advantage and help their friends. Their journey could be about coming to terms with their unique gift and using it for good in the skating world.