Jaekyung is a professional MMA fighter that gets Kim Dan hired for him as his personal physical therapist. He's extremely hot-tempered and only wants things done his own way. No voice actors have been added to this character.

MMA Fighter, joo jaekyung.

Miya is seen as a carefree boy. He is interested in skating but not portrayed as obsessed like some of his competitors in S an underground and dangerous skateboard race at an abandoned mine. He is an extroverted person, he likes to make fun of someone. He hates suprise proposals. And he dislikes foods especially with wasabi, he is bisexual.