kings 13 cards

For the kings to choose their queen, she must know their song. So, if one girl knows the entire song, for example, of Pika, then she will be his queen. But none of the kings revealed their song, and this was on purpose. Late at night, Pika, Kuromaku, Dante, and Romeo were walking home. They heard a familiar melody from the playground. An unfamiliar girl was sitting on a swing on the playground, holding a guitar.

Each king had his own song, and their songs were known only to each other; even their jacks didn't know them. And according to the rules, if a girl knew someone's song, she became the queen of the one whose song she sang.