It could be a plot where Chiyuki and Decim are in a dangerous situation, and in a moment of desperation or relief after getting out of it, they share a kiss. For example, they might have just escaped from some powerful enemy in their fictional world.
A 'chiyuki x decim kiss fanfic' could potentially be a great exploration of the characters' deeper emotions. Maybe the kiss is a turning point in their relationship. For example, it could be the moment when they finally admit their feelings for each other. If the original story has a lot of unspoken tension between them, this kiss in the fanfic could be a way to release that tension and start a new chapter in their relationship.
I think a good 'chiyuki x decim' fanfic would be one that delves deep into their characters. For example, a fanfic that explores how Decim's lack of emotions gradually changes because of Chiyuki. It could show their journey together, how Chiyuki's presence affects Decim's understanding of humanity. You can also look for fanfics recommended by other fans on social media groups dedicated to this fandom.
Fanfiction.net might also have some 'chiyuki x decim' fanfics. It's an older platform but still has a wide range of works. However, the tagging system might not be as detailed as AO3, so you might need to do a bit more searching. You can also try Tumblr. Sometimes users post links to their favorite fanfics there, or even write short fanfics directly on their blogs.
Yes, there are quite a few. You can find some on fanfiction websites like Archive of Our Own. Some fanfictions explore their relationship further, showing how they grow closer and understand each other on a deeper level.
The themes usually include the power of human emotions. Chiyuki's humanity and emotions start to affect Decim, so there's a lot about how emotions can change a being like Decim. Another theme is the idea of redemption. Decim might find a form of redemption through his relationship with Chiyuki, as he begins to understand the value of the souls he is judging in a different way.
One possible plot could be that they are on a mission together in a dangerous situation. As they face numerous challenges and rely on each other for survival, their bond deepens. In a moment of intense relief after narrowly escaping death, they share a spontaneous kiss. It could be a story about two characters from different backgrounds coming together through shared experiences.
One possibility could be a story where Elsa discovers the world of Idun. Their kiss might symbolize a union of two different magical realms. Maybe Elsa is on a quest to save her own world and Idun's realm holds the key. The kiss could be a moment of connection that unlocks new powers within Elsa.
Perhaps they are at a party on Kami's Lookout. There's a beautiful sunset in the background. Chichi has been waiting for Goku to make a move for a long time. Then, Goku, feeling a newfound courage, leans in and gives her their first kiss. The kiss might be a bit clumsy as Goku is not very experienced in such things, but it's full of love.
One possibility could be a crossover universe where Naruto somehow ends up in the Sekirei world. The kiss between Naruto and Miya might be a result of a misunderstanding at first. Maybe Naruto mistakes Miya for someone from his own world and in a moment of confusion, there's a kiss. Then, it could lead to a whole adventure as they try to figure out how to get Naruto back to his own world while also dealing with the Sekirei rules and the reactions of other characters in the Sekirei world.
It could be about a secret encounter between Blackfire and another character where the kiss is a moment of unexpected passion. Maybe Blackfire has been in a long - standing feud with someone and the kiss is a turning point in their relationship.