For all the sights he got to relish in from the variety of sounds he heard, Twelve had never associated a color with his own voice.
It had been a non-issue at the Academy, survival had been at the forefront of Nine and his minds. Still after having a taste of freedom and the chance to finally live like normal people do, he started to notice it more. Everyone around him created a rainbow of images, green and vibrant, pink and innocent, or lavender and serene. His first theory was that the Academy had drained any hue from his body, but the number children had held color as well. Nine, himself, was a soft, gray-blue, cold and distant, but hiding immense strength. It seemed the universe had forgotten about Twelve in the big scheme of things, and had left him colorless.
So naturally, that made him try to leech off everyone else color. He clung to Nine not only because he was the one thing left in his life, but also because he got to take in as much as that gray-blue as he pleased. And he was always more willing to reach out to strangers because he knew that if Nine went before him (and despite their promise about 'no lying', Twelve knew with each year, it was becoming more and more likely) than these unfamiliar faces would all he would have left to illuminate his life.
When he saw Lisa Mishima's hue, he knew right away to keep track of it. She was such a pale and gentle yellow, like sunlight in the morning, so warm and beautiful, you naturally tilted your face toward it. He knew it would an addictive voice, so at first he tried to keep his distance. However after a few days, it was obvious to anyone he was failing miserably.
He just couldn't help it. She seemed just as broken as they were, but still had not lost her ability to love and care. How could anyone be that strong? He just had to know, and that pale yellow kept reeling him back to her. He was Theseus and she was Ariadne with her guiding string. Twelve would always find her, no matter the Labyrinth he faced.
He felt more human around her. It wasn't that he didn't love Nine, but around him he was all too aware of his morality. But with Lisa he got a taste of normalcy, and how could anyone turn it down? He got to pretend he had a future, pretend he'd be able to spend lots of time with Lisa. Nine wasn't for those fantasies, but why try to be so big about it? They had lost their childhood, might as well try to reclaim as much as it back.
Eventually, Nine finally saw his thinking. It may have taken til they had detonated the last bomb, but he finally tried this childhood thing out and the got to have fun at a trio.
He forgot himself that day, forgot about all the worries and anxieties that had burdened him since birth. As Nine scrounged around for something for them to eat, the two of them just laid together, basking in the summer warmth. Twelve didn't even think before asking Lisa to say his name.
She did. And his world seemed to explode into a million different colors, the entire spectrum flashed before his eyes. It was the most beautiful thing he had even seen and he couldn't help but tell Lisa that. He rambled on and on about how gorgeous her voice was.
She smiled at him, and it was even better than the colors her voice had drawn out. It blinded him so thoroughly he couldn't see anything else. But then when his time came to leave, he was glad to have witnesses such a beautiful sight.
A.N. For sonata-k on tumblr, I've always enjoyed your presence on my dash. Besides your prompt, I took some inspiration from Spectrum by Florence and the Machine (They literally have a song called Blinding, but Spectrum fits Hisalisa much better) you should check it out if you're interested.