Just what the summary says, every chapter title will be named and based off of a color of the rainbow and will explain how that color reminds Sora of Kairi.
Hope you like it!
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Red
The color red is a very bold color, normally viewed as one that represents powerful emotions, such as love, or one that is often seen during times of great pain, when blood is oozing from open wounds. Red is a color that is not usually associated with the word 'calm' or 'comforting', but in Sora's case, it very well was.
Red reminded him of home, it reminded him of her. In his own opinion, red was almost serene; the color that brought back pacified memories of running around on the islands and admiring the way her hair blew in the soft breeze that passed them by. He loved the way Kairi's maroon hair framed her delicate face and the way her sideswept bangs always seemed to fall perfectly just above her bright, blue eyes.
