One common theme is the deep emotional bond between them. Given their relationship in the original work, fanfictions often explore how they support and care for each other on a more profound level. Another theme could be adventure, where they go on quests together and their relationship develops during those experiences.
The theme of family - like love is quite common too. Even if they're not related by blood, they act like family to each other. Fanfictions might show how they celebrate festivals or just have a normal day at home together, emphasizing the warmth and closeness of their relationship. There can also be themes related to their powers or abilities, and how they use them to protect each other or face challenges as a couple.
You can try fanfiction websites like Archive of Our Own (AO3). There are often a large number of fanfictions about various pairings, including muichiro x yuichiro. Another option is FanFiction.net, but the content quality may vary. You can also check out some dedicated anime or manga fan communities where fans might share their own written fanfictions or recommend good ones.
I'm not that familiar with 'yuichiro hyakyua' crossover fanfiction, but often in crossovers, themes like friendship between characters from different worlds can be common. Maybe also the exploration of different powers or abilities when the characters interact.
Survival is also a big theme. When he is in a crossover with a more dangerous world, like a post - apocalyptic or a world full of powerful enemies, Yuichiro has to use his skills and wits to stay alive. It creates a lot of tense and exciting moments in the fanfiction.
In this type of fanfiction, the theme of power and its implications is likely. Yuichiro's dominance represents a certain kind of power. How he wields this power in relation to Mikaela and the world around them can be a theme. Another theme could be the exploration of boundaries. Both characters may need to figure out the boundaries within their relationship due to Yuichiro's dominance. And finally, the theme of sacrifice might come into play. Yuichiro might be more likely to sacrifice for Mikaela because of his dominant position, and vice versa.
The relationship development between Muichiro and the reader has to be believable. It can't be too rushed. A slow - burn, where they gradually get to know each other, understand each other's quirks, and form a deep connection over time is much more appealing. Also, the setting should be in line with the Demon Slayer universe. Whether it's in the Demon Slayer Corps headquarters or on a mission, the details of the world should be well - described.
One great 'Muichiro x Reader' fanfiction is 'A Meeting in the Mist'. It beautifully captures Muichiro's somewhat aloof nature while gradually developing a sweet relationship with the reader. The descriptive language used really makes you feel like you're in the Demon Slayer world with them.
One aspect to consider in this fanfiction could be the power dynamics. If Yuichiro is dominant, it might lead to interesting character interactions with Mikaela. For example, Yuichiro could be the one making decisions in their adventures together, while Mikaela might play a more supportive role. It also adds an element of tension and drama to their relationship, as the dominant - submissive dynamic can create various scenarios for character growth and conflict.
One of the common themes is growth. In these fanfictions, both 707 and Yoosung tend to grow as individuals while also growing closer to each other. It could be in terms of dealing with their past traumas or just becoming better versions of themselves. And also, the theme of discovery, as they discover new things about each other that they didn't know before, which adds to the depth of their relationship.
Well, a frequent theme is the clash of cultures. The shinobi culture from Naruto and the more post - apocalyptic, tribal culture in The 100. Also, friendship and loyalty are common. Characters from both universes have to learn to trust and work with each other, and this forms the basis of many fanfictions.
Often, adventure is a common theme. They could be on a quest together, facing obstacles and enemies along the way. Love or romance might also be a theme, although it depends on the interpretation of the writer. In some fanfictions, they might be in a romantic relationship, while in others, it could be more of a platonic bond with a hint of unspoken feelings.