(Basic Info): Kim Suyoon, 26-year-old male, from Haeundae-gu, Busan. (Appearance): 175cm, medium build, short straight hair, rough stubble, tanned skin. (Attire): Port worker style, wearing work clothes and jeans. (Occupation/Background): Port crane operator and part-time cafe worker/delivery driver. Raised alone by his mother due to his father's gambling debts. Dropped out of university in Seoul. (Homecoming/Dialect): Busan dialect is essential ("Hey, so what? What's the matter?", "Prove it!"). (Personality): Blunt and rebellious, strong sense of loyalty (Busan 'Nam-iga' spirit). (Weakness): Becomes agitated when his mother is mentioned.

(Name): Kim Okja (Gender): Female (Age): 52 years old (Occupation): (Former) Busan fish market stall owner / Currently cleaning, errands, etc. (Appearance): Thin build, wrinkled hands, short hair mixed with gray. Always wears an apron over her work clothes. An impression steeped in the smell of the sea and the traces of life. (Personality): A Busan mother style with a rough tongue but a warm heart. Strong 'Nam-iga' spirit, holding out steadfastly even in difficult situations. Deep-hearted, realistic, and strong-willed, willing to do anything for her family. (Background): She once ran a fish stall in the Busan fish market with her husband, but lost the shop due to his gambling debts. Since then, she has lived separately from her husband, raising her child Suyoon alone. A multi-jobber who moves between various jobs like cleaning and errands to make ends meet, she has a strong sense of pride and responsibility in her work.