7 Days of Romance S01 E02 Using the same room with the person you met for the first time?

Da-eun and Byul switch their lives for a week. Da-eun appears in a dating show with Jung-woo, and Byul works part-time at the cafe, and no one except Da-eun, Byul, and Byul’s manager knows about it. But Ari notices something strange about Byul who works at the cafe