Another way it could end is on a bittersweet note. One of them could sacrifice themselves for the other during a major battle. Their kiss before the sacrifice becomes a poignant memory. The survivor is left with the memory of the kiss and the love they shared, vowing to carry on their exorcist work in honor of the fallen one.
It could end happily with them becoming a couple and continuing to fight demons together. They support each other in their exorcist duties and their relationship grows stronger over time.
Well, it could be a story where Rin and Shiemi are on a mission together. As they face a powerful demon, Shiemi gets injured. Rin, worried sick, nurses her back to health. In a moment of relief and new - found closeness after the ordeal, they share a kiss. It's a sign of their growing bond and the start of a deeper relationship.
In the Blue Exorcist series, Rin and Shiemi have a very special relationship. They are friends and comrades in the fight against demons. While the series doesn't really point towards them having a romantic future in an obvious way, they do care deeply for each other. Rin is a strong - willed and hot - tempered character, while Shiemi is more gentle and kind - hearted. Their personalities could potentially complement each other well in a relationship. However, they are both focused on their exorcist duties for now. So, it's hard to say if they would ever end up together in that sense.
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.
In some fanfictions, Rin might be tortured psychologically. For example, his friends could be put in danger and he's made to watch helplessly. This plays on his strong sense of loyalty and friendship.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of Blue Exorcist fanfics. Just type 'Blue Exorcist Rin x Shiemi' in the search bar and you'll get numerous results. Some might be focused on their relationship development, while others could be adventure - themed with their relationship as a side plot.
In the Blue Exorcist story, Rin and Shiemi's relationship has the potential to develop further. They have a certain chemistry that is evident in their interactions. Rin's brashness and Shiemi's calmness can create an interesting dynamic. But the story is full of other elements that could either push them together or keep them apart. For example, the threat of demons and the secrets within the exorcist community. Also, their own personal insecurities might hold them back. Overall, it's hard to put a number on the chances, but it's not impossible for their relationship to evolve.
In the fanfiction, their kiss could be a turning point in their relationship. It might symbolize a deeper connection between them. It could occur in a beautiful, perhaps a secret garden within the academy. The description of the kiss could involve the softness of their lips, the quickening of their heartbeats, and the surrounding scenery enhancing the romantic atmosphere.
A good fanfiction about their kiss should have strong character development. It should show how Rin and Shiemi have grown to reach this point in their relationship. For instance, if it shows how Rin has become more in control of his powers and more confident in his feelings for Shiemi, that would be great.
It could be about Naruto somehow ending up in the world of Blue Exorcist and taking on the role or having the abilities of Rin. Maybe he has to fight demons in the Blue Exorcist style while still having his Naruto - like skills.
I really like the fanfic 'Rin and Shiemi: A New Chapter'. It starts off with them going on a mission together. In this story, they have to rely on each other more than ever. It has some really cute moments where Rin tries to protect Shiemi in his own clumsy way, and Shiemi in turn helps Rin understand his powers better.