The reader could be a childhood friend of Terry who has lost touch over the years. By chance, they meet again in a small town. Terry is different now, a tough fighter, but the old bond is still there. They have to navigate their new relationship while Terry also has to deal with his fighting career and the enemies it brings.
Research about Terry Bogard's backstory, his values, and what he stands for. For the reader character, give them a unique set of skills or interests. If they are into art, for example, show how that contrasts or complements Terry's world of fighting. Also, don't make their love at first sight. Let there be doubts, misunderstandings, and growth in their relationship which will make the character more believable.
A common theme is often romance. Writers might pair Terry with female characters in the game's universe or create original female characters to have a romantic relationship with him. Another theme could be Terry's growth and development from a female character's perspective, like how a female character might influence his journey.
One of the top stories could be his epic battles in the King of Fighters tournaments. His skills and strategies in combat are always a highlight.
A plot could involve the reader being a healer of sorts. Flowey, being curious, approaches the reader. As they interact, the reader starts to show Flowey kindness that he's not used to. This kindness begins to thaw his cold, calculating nature. They could then go on adventures together in the Underground, with Flowey slowly becoming more protective of the reader. Also, the reader could introduce Flowey to new concepts like friendship and self - sacrifice, which would be a huge change for him.
One plot idea could be that the reader is a new ninja in the village and Sasuke is assigned to train them. Through the training sessions, they start to understand each other better and develop feelings. Another could be that the reader has a special power that Sasuke needs to help him in his quest for revenge, and as they work together, love blossoms.
One idea could be that the reader is a new resident in the haunted house where Beetlejuice lurks. They accidentally summon him while trying to fix up the old place. Another could be that the reader is a medium who can see Beetlejuice clearly and they form an unlikely friendship. Maybe the reader is a lost soul like Beetlejuice and they find common ground in their otherworldly existence.
One plot idea could be the reader being a new hunter who catches Hisoka's attention during the Hunter Exam. Hisoka decides to 'mentor' the reader in his own twisted way, leading to a series of dangerous and exciting adventures.
Another plot could be that the reader is a journalist investigating the strange disappearances around an old, abandoned studio rumored to be haunted by Bendy. As the reader delves deeper, they encounter Bendy and instead of being afraid, they start to see the misunderstood side of him. This leads to a relationship where the reader tries to tell Bendy's story to the outside world and protect him from those who would do him harm.
Well, a plot could involve the reader being a bit of a troublemaker in the village. But Krampus, rather than just coming to punish, he wants to reform the reader. He takes the reader on a journey through the shadowy parts of the forest, showing the reader the spirits of those who were truly bad. This makes the reader realize their own actions are not as bad as they thought and they start to change for the better. Also, the reader could be an artist who tries to capture Krampus' essence in a painting, and this draws Krampus to the reader in a curious way.
Another interesting plot could be that the reader is a time - traveler from the future. They come to Arendelle during Elsa's reign and know about all the events that are going to happen. The reader tries to help Elsa avoid some of the hardships she will face in the future, but in doing so, they accidentally change the course of history. This creates a complex situation where Elsa and the reader have to work together to set things right while also dealing with their growing feelings for each other.