Well, a really interesting plot twist could be that the Crimson Dragon Emperor has a hidden connection to Shirou's past. Maybe it was involved in an event that shaped Shirou's life without him knowing. This would completely change the dynamic of the fight. Another plot twist could be that Shirou's power suddenly backfires during the fight, putting him in a dangerous situation where he has to rely on his wits rather than his magic. Or perhaps the fanfiction could introduce a time - travel element, where the fight is not really in the present but is part of a loop in time that they need to break.
In this fanfiction, the battle between Shirou Emiya and the Crimson Dragon Emperor likely showcases an exciting clash of powers. Shirou's abilities, which are often related to projection magic, would be pitted against the Crimson Dragon Emperor's unique powers, which may include enhanced strength, fire - based attacks, and perhaps some form of dragon - like abilities. It would be interesting to see how the author portrays the strategic thinking of both characters during the fight.
A possible plot twist could be that the dragon is actually a shapeshifter and turns into a human form that Shirou knows. Maybe it's someone he thought was dead.
One common theme is power and its consequences. Shirou often gains new powers related to the dragon, and the fanfictions explore how he copes with that. Another theme is loyalty, whether it's Shirou's loyalty to his new dragon ally or vice versa.
Shirou might develop better teamwork skills. In multiplayer games, he'll need to cooperate with others. This could be a big change for him as he's often used to working alone. He'll learn to trust his teammates and communicate effectively, which will in turn make him a more well - rounded person in both the gaming and real - world scenarios.
One possible plotline could be Shirou finding himself in Westeros and using his skills as a swordsman to get involved in the power struggles. Maybe he becomes a knight in someone's service.
One possible plot twist could be that Jiren discovers a way to nullify Saitama's strength. Maybe he finds some sort of energy - draining technique that weakens Saitama over time. Another could be that Saitama holds back for some reason, like he wants to see the full extent of Jiren's power, and in doing so, he gets into a real struggle.
Another plot twist might be that Luffy actually loses the first round of the fight but then finds an inner strength or a new power - up from an unexpected source, like a memory of Roger or a new Devil Fruit ability that he unlocks in a moment of desperation.
A plot could involve Shirou being transferred to the Highschool DxD school. He quickly catches the attention of Rias and her peerage. His different style of combat and his unwavering determination might lead to some friendly rivalries within the group. He could also introduce some new concepts of magic that the DxD characters have never seen before, like his ability to reinforce objects. And he may find himself in the middle of the power struggles between the different factions in this new world.
Well, one possible plot could be that Shirou wakes up one day as a girl and has to deal with all the new physical and social changes. His friends might be really confused at first, like Saber who would be very surprised to see her master in a different form. Shirou, now as a girl, might struggle with things like wearing dresses and having different hormonal emotions. And he would have to face enemies in this new form too, which could lead to some really interesting battle scenes where his opponents underestimate him because he's now a girl.
Perhaps Shirou becomes an Avenger due to a misinterpretation of his ideals. He always wanted to be a hero who saved everyone, but in a world where his actions are constantly misconstrued and lead to more harm than good. He could be driven to the point where he believes that only by taking revenge on those who wronged him and his loved ones can he set things right. This would be a very complex and angsty storyline.