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So i suddenly came up with this idea, what if Xiao & Aether were dating and Xiao had a split personality but Xiao didn't know about this, and whenever his split personality appears he would torment Aether (maybe in his dreams, since that's what Xiao kind of used to do?) and Xiao would not remember anything that happens when his split personality takes over. Aether decides not to tell this to Xiao so as not to cause him any more unnecessary distress and figures that he would try to find the reason this split personality of Xiao's has appeared and try to resolve the root issue to make it disappear.
One day while Xiao's split personality was tormenting Aether (like maybe he made him experience a really sad ending with Lumine or something, like his worst nightmare.), it went too far and Aether started crying loudly, absolutely wrecked sobs escaping his lips as he finally couldn't take it anymore and all the pressure of shouldering this alone comes crashing down on him. That is when Xiao suddenly overcomes his split personality (through pure instincts alone, knowing that Aether is hurt really badly). He is absolutely shocked by the sight before him and wants to know what the hell happened, but as the realisation of what may have actually been the reason for Aether's current state dawns in he is suddenly too afraid to find out. He decides to help Aether first and foremost, horrified to see that Aether seems to be scared of him. He tries to soothe him gently and Aether finally realises that his Xiao is back and hugs him tightly repeating ' i am sorry ' over and over again, probably ridden with the guilt of letting Xiao find out and in such a terrible situation no less, what he wanted most was to avoid this situation and seeing Xiao's face he knows that Xiao is blaming himself for everything. He has already forgotten about everything that happened moments ago, right now all he wants is to comfort Xiao.
They both sit in each other's comfortable embrace and when everything is over with, after a long arduous talk (in which Xiao recklessly thinks of ridiculously dangerous ideas to get rid of his other personality, ideas that were firmly rejected by Aether without compromise, and Aether apologises to Xiao and promises to him for the upteenth time that he won't ever hide things from him and sacrifice himself for his sake although this sacrificial idiot would still do the same if it happened again🙂 , until Xiao was finally satisfied ), they decide that they would try to figure out and solve this problem together. Some safety measures for when the situation got dire were also decided. The story could then go on to explore the mystery behind Xiao's split personality and it could even become a fluff and comedy from angst lmao.
They go on a long adventure, discover new things, have a lot of fluff and fun moments, though a few hiccups and such can also be added in between.
Well that concluded the idea that my brain came up with in the middle of the night (￣ヘ￣;). Since i cannot write stories and would totally ruin it if i write this, plus the fact that i can't think of an actual plot to go in between these outlines(´-﹏-`；), i have decided to just leave the idea here for anyone who may be interested in picking it up.
Do with this idea what you want, like there is no restriction or demand or anything like that on my part, you can make it pure fluff and comedy if you want or you can make it dark, that is also why I didn't choose any warnings cause that will completey depend on the author's decision. That's all I wanted to say :D
Have a lovely day/night byee