Park Hyung Suk is an unpopular and bullied high school student who is looked down upon by his peers due to his obesity. Bullied and harassed by criminals every day, he expresses his anger towards his mother and demands that he transfer schools. Deciding to run away from his problems and start over, he plans to move to Seoul and attend a new high school. But just a few days before school started, he got a tall, muscular, and handsome new body. When one body is used, the other falls asleep. He can change his body by awakening sleeping bodies. His days are divided into two bodies: Beautiful by day, original by night. Daniel Park (Park Hyung Suk) begins to realize how discriminatory the world is towards people who are seen as unattractive or different if they live with two bodies. He experiences discrimination and hatred towards his own body, kindness, and special treatment from others. His new body has made him a social media influencer, an entertainment company trainee, and a fashion model. But at night, back in his original body, Daniel's dream life becomes a harsh reality.