My story has two protagonists -- Emperor Zelith's favorite colors are red and white mainly because they represent his kingdom's flag, while his soldier, Eichelberbog, is probably a mystery lol. I imagine he likes white as well, as he associates it with Zelith.
Zelith is a very elegant person and his favorite drinks are light and refined, while Eichelberbog likes spicier things. 
It's a dark fantasy BL novel! Check it out here:
Eichelberbog is feared, despised, and has long since resigned himself to a solitary, violent existence. He is a warrior, a soldier, a machine. And he has no need for companionship.
But when the beautiful, fatal, and rival Emperor Zelith takes a personal interest in him, everything changes.
Betraying his own country, his own creators, forced to work on the enemy side under the promise of being killed otherwise, Eichelberbog must decide once and for all what really matters to him.