One idea could be to explore the backstory of a minor character in the Ousama Ranking world. For example, a side character's journey to become a knight. Another could be a fanfic where characters from different kingdoms in the Ousama Ranking universe have to team up for a common goal, like facing a powerful and mysterious enemy that threatens all kingdoms. Also, a story about the daily life of the main character before he started his ranking journey can be really interesting.
First, you should re - watch or re - read the Ousama Ranking to get a fresh feel for the characters and the world. Then, pick a concept or idea that interests you, like I mentioned before. After that, start with a simple introduction of the setting or the main character. For example, 'In the kingdom of [kingdom name], a young boy named [character name] was about to embark on a journey that would change his life, in a world ruled by the Ousama Ranking.'
I'm not entirely sure as I haven't read it specifically. But generally, it might be about a game with a king - like concept ('ousama' means king in Japanese) that involves some sort of annihilation or destruction within the context of the story in the novel.
I don't know the specific main characters in this novel without having read it. But they could be ordinary people who get caught up in this 'ousama game' and have to fight for their survival.
Well, often the main protagonist tends to be popular. They are usually the ones who the readers root for as they try to survive the deadly game. Their courage and determination make them stand out.
One interesting concept could be the exploration of power dynamics. In 'ousama game' fanfiction, characters are often put in extreme situations where power over life and death is at stake. This can lead to complex character development as they struggle with the moral and ethical implications.
Well, 'ousama game' could imply a game where there are power struggles similar to those in a monarchy. In the context of a cell phone novel, it might tell a story of characters who get involved in this game through their cell phones. Maybe they receive mysterious invitations to participate in a virtual 'ousama game' and then face different challenges and moral dilemmas as they play.
I don't know for sure as I haven't read it. But typically in such novels, there might be a protagonist who is an ordinary person at first and then gets caught up in the 'ousama game'. There could also be antagonists who try to manipulate the game to their advantage.