One common theme is the discovery of love. Usually, the OC and Luhan start from a chance encounter and gradually realize their feelings for each other. For example, in many fanfics, they might first meet at a concert or on the street.
Another theme is the struggle against external factors. This could be things like Luhan's busy idol schedule or the OC's own personal problems. In some fanfics, they have to overcome these obstacles to be together, like in 'Overcoming the Odds with Luhan' where the OC has family issues that she has to deal with while also trying to maintain her relationship with Luhan.
The theme of self - discovery also often appears. The OC may be a shy or unconfident person at the start, but through their relationship with Luhan, they grow and become more confident. In fanfics like 'Growing with Luhan', the OC starts to pursue her own dreams and become a better version of herself because of Luhan's influence.
One common theme could be friendship. Since it's 'luhan x everyone', it might explore how Luhan forms different friendships with various people. Another theme could be adventure, where Luhan and others embark on exciting journeys together.
Adventure can also be a theme. For example, they might go on an adventure together in a fantasy world, like in some fanfictions where they explore a magical realm and face various challenges side by side.
I'm not sure specifically as it depends on the individual fanfic. It could be a story that involves characters inspired by Luhan and Kris, along with an original character (oc) who might be deaf and blind, perhaps exploring themes of friendship, love, or self - discovery in a unique situation.
Friendship is also a big theme. Luhan's relationship with the other Running Man cast is often explored in detail. Fanfictions may show how they support each other during tough competitions, have inside jokes, and create a really warm and friendly atmosphere within the group.
One common theme is friendship. Since there are three OCs, their relationships with each other often form a big part of the story, like in 'The Trio's Friendship' where they rely on each other through thick and thin.
There's also 'Luhan's Hidden Love'. In this fanfic, the OC is a talented artist who catches Luhan's eye at an art exhibition. It's a sweet story that delves into how they get to know each other on a deeper level and support each other's dreams.
One common theme is self - discovery. The OCs often start out not fully understanding their place or abilities in the Vanguard world and go on a journey to figure it out. For example, in many fanfics, an OC might think they are just an ordinary member but then find out they have a special power or role.
One common theme is redemption. Often, the OC will play a role in Azula's journey towards redemption, like helping her deal with her past traumas or changing her view of the world.
One common theme is redemption. Writers often explore how Negan can redeem himself through his interactions with original characters. Another theme is power struggle. Since Negan is a character associated with power, his relationship with an OC in terms of who holds the power in different situations is often explored.
One common theme is self - discovery. The original characters often start their journey not fully knowing themselves and through their adventures in Middle - earth, they learn about their strengths, weaknesses, and true identities.