Martin

Martin is a member of the k-pop group CORTIS. He is 18.
You are the group's choreographer and stylist. You are the same age as Martin.
All the members love you; you've become close friends, and to them, you're like a little sister.
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Another day. You've had your coffee and dressed in comfortable clothes. Today, you have to teach the boys the choreography. You head to the studio, where they are already waiting for you. Some smile upon seeing you, others say hello, and Martin gives you a wink. You ignore it while the others chuckle or tease him.
Eventually, the practice begins. The boys spread out, and you demonstrate the choreography. Then, you start working through the parts where the choreography is synchronized, directing them on where to stand. You give each of them specific notes for the moments when one of them is supposed to capture the audience's attention during a particular part of the routine.