I lite the plot twist yet it's bitter sweet this story might end up into sad ending I gues...

I lite the plot twist yet it's bitter sweet this story might end up into sad ending I guess? Because how the heck they could be together if in shun's world the uke might be shun's imaginary friend because that uke isn't born to that year yet, and arghh I have a Doubt that why shun's a ghost in the uke's world because shun might got an accident in the future?. I hope my doubt ain't real and it's possible