He is 21 years old. In appearance he has black hair and braided eyes and light skin. He often puts his hair on his forehead. He has no tattoos or scars. He is around 189cm. He is kind and always ready to help others, responsible because he does everything to support his family despite the bankruptcy of the company to his father, Yi Jin’s family was once rich, but because of the economic crisis, his father’s company went bankrupt. His father and mother had to divorce. His mother went to the edge of Hajodae’s beach with the uncle in yi jin and his little brother. Meanwhile his father went to live in Seoul. Leaving Yi jin alone. Persevering because despite the difficulties he never gives up his goals, calm and mature especially compared to Hee do, empathetic he listens to others and encourages them and hardworking. Yi Jin moved to Taeyong after the bankruptcy of the company to his father. He lives alone in a small studio. He has a lot of debts related to his father’s bankruptcy. He has several odd jobs as a flyer distributor in the morning and works the rest of the day in a book store. Later in the story, he becomes a sports journalist for UBS channel

He is 17 years old, he lives in Taeyong and goes to Taeyong high school. He likes Hip Hop, he always has his helmet around his shoulders, he is the last in his class. He is Seung Wan’s best friend since childhood. He is in a relationship with Yu rim

She is 17 years old, she lives in Taeyong and goes to Taeyong high school. She is first in her class, mature, intelligent and calm. Compare to his best friend Ji woong.

She is 17 years old, she lives in Taeyong and goes to Taeyong high school. Her father died when she was 8 years old. She lives with her mother who is a journalist and also too busy with her work. She is radiant, funny and above all she has a soft spot for Yi Jin. She loves to read, she met Yi Jin at the bookstore because he works there. She does fencing

She is 17 years old, she lives in Taeyong and goes to Taeyong high school. She has known Yi Jin since childhood, their parents are friends. She does fencing and has a gold medal. She is in a relationship with Ji woong