Common themes in 'blue exorcist rin fanfic' include Rin's self - discovery. He's constantly trying to figure out who he is and where he belongs in the world of exorcists and demons. Another theme is redemption. Some fanfics may have Rin trying to atone for the 'sin' of being Satan's son. And of course, the theme of family also pops up a lot, whether it's his relationship with his adoptive father or his biological father, Satan.
In 'Blue Exorcist Rin fanfic', a very frequent theme is Rin's battle against his inner demons, both literally and figuratively. His journey to master his demonic powers while still remaining true to his human side is often explored. Also, his relationship with the exorcist community, whether it's facing discrimination or finding acceptance among them, is a common theme. Additionally, his friendships, especially with the people he meets at True Cross Academy, are often a big part of the stories.
One theme that pops up a lot is the struggle with their exorcist duties while also dealing with their feelings for each other. They have to fight demons and protect the world, but at the same time, they are developing these complex emotions. It's like a balance between their personal lives and their responsibilities. And also, the theme of acceptance is there. They have to accept each other's flaws and strengths as they get closer.
One common theme is Rin's struggle with his identity as a half - demon. In many fanfics, his depression stems from feeling like he doesn't belong in either the human or demon world. Another theme could be his relationship with his brother. If there are unresolved issues or misunderstandings between them, it can add to his feelings of depression. Also, the fear of his demonic powers getting out of control and harming those he loves is often explored, which can lead to his depressed state as he tries to keep his powers in check while also living a somewhat normal life.
One common theme is innocence. Since it's about 'baby Rin', it often shows his pure and naive side before he fully understands the weight of his demon heritage. Another theme is friendship. It might explore how Rin forms his first friendships at the academy.
One common theme is the growth of their relationship. Since Rin is a demon - human hybrid and Shiemi has her own insecurities, their relationship development is often explored. For example, how they learn to trust each other more deeply.
Love and friendship are also big themes. The relationship between Rin and the OC can range from a slow - burning friendship that turns into love, to an instant attraction. In many stories, they support each other through difficult times, like when facing powerful demons or dealing with the politics within the exorcist community.
One common theme is the power struggle. Given that Rin is a powerful exorcist and Amaimon is a demon, there's often a tug - of - war between their powers and how they deal with it in their relationship. Another theme could be the exploration of their different natures, with Rin being half - human and half - demon and Amaimon being a full - fledged demon.
One possibility could be that his relationships with other characters would change drastically. For example, his friendship with Yukio might become more protective on Yukio's part as he now has a sister - like figure in Rin. Also, his interactions with the other exorcist trainees could be different. They might be more hesitant around him as a girl, or some might be overly friendly in a different way.
Some fanfics focus on Rin's power development in a different way from the original story. Maybe she discovers new powers or has to learn to control her existing ones in a more challenging situation. There are also fanfics that explore Rin's family relationships in more depth, especially her connection to her father. This could involve flashbacks or new revelations about her family's past.
One common theme is adventure. Given the nature of the Blue Exorcist world, many fanfictions will have Rin and Shirou going on various adventures together, fighting demons and solving mysteries.
Friendship and acceptance are also prevalent themes. His friends' reactions to his tail collar and what it represents can be a big part of the story. For instance, some fanfictions might show how his friends help him come to terms with his unique situation regarding the collar. Additionally, there could be themes of mystery, like the origin of the collar and any hidden powers it might possess.