Another plot idea could be a war that the hounds are involved in goes awry. They might face an enemy they were not prepared for, and they have to use their unique abilities in new and unexpected ways to survive. For example, if they usually rely on speed, they might have to use their intelligence more in this new situation.
One idea could be a role - reversal plot. Instead of the usual power struggles between Kaguya and Miyuki, have them switch personalities for a day. It would be hilarious to see Kaguya being overly confident and forward, while Miyuki is shy and hesitant.
A fanfic could center around the idea that the girl they were fighting over in the movie actually has a secret identity as a spy. When they find out, they have to team up with her to take on a bigger threat, all while still dealing with their feelings for her.
One idea could be a story about an underdog kingdom rising to power through unexpected alliances. Maybe a small, resource - poor kingdom teams up with a group of powerful but outcast mages. Another could be a love story between a warrior from one warring kingdom and a noble from an enemy kingdom, which could potentially change the course of the war.
One idea could be a story about an underdog kingdom that discovers a long - forgotten magic and uses it to turn the tides of the war. Another could be a fanfic centered around the love story between a knight from one kingdom and a princess from an enemy kingdom, which then affects the course of the war. Or perhaps a tale of a young strategist who rises through the ranks and devises brilliant battle plans for his kingdom in the War of Kingdoms.
One idea could be a war between different Vocaloid factions over control of the music industry. Each faction has its own unique style and they battle it out in epic musical duels.
One idea could be exploring the backstory of a minor character in 'the darhk war'. For example, a soldier who has a hidden past that ties into the main conflict. Another could be a what - if scenario, like what if a key battle had a different outcome. It might also be interesting to focus on the relationships between different factions during the war and how they could have developed differently.
One idea could be to focus on a young recruit's journey through the war. Show their initial fear and inexperience, and how they grow into a capable warrior. For example, they might start out being afraid of the chaos demons but learn to face them bravely.
One idea could be focusing on an underdog character in the Clocktaur War. This character could start as a simple peasant who gets caught up in the chaos. Through a series of events, they discover a hidden power within themselves that could potentially change the tide of the war. Maybe they find an ancient artifact that has the ability to control the Clocktaurs to some extent.
One idea could be focusing on a minor character's perspective during the war. For example, a young genin who is caught in the middle of the chaos. They could witness the great battles between the powerful shinobi and have their own journey of survival and growth.
One idea could be that the two main characters, who are on opposing sides in a fictional conflict, find themselves constantly drawn to each other during battles. They start leaving secret messages for one another on the battlefield. Another could be that they are forced to team up for a mission, and during that time, their love begins to bloom as they see different sides of each other.