Kōzo Nomura was born in
Kagoshima City, Kagoshima Prefecture, in 1967, as the eldest of two siblings. He grew up impoverished, with his family living in an old apartment with two rooms, with one room in 6
tatami mats (approximately 106 square feet) in size and the other in 4.5 tatami mats (approximately 80 square feet) without a bathroom. When he was twelve years old, Sawamura's father suddenly disappeared without notice as to why. Days later, debt collectors showed up at their apartment to inform them that his father had accrued a substantial amount of debt, presumably from gambling. To pay off those debts, his mother worked at a snack bar at night and in cosmetics sales during the day to raise him and his younger sister. His parents remained legally married until their divorce when he was in junior high school, although his father now occasionally visited their home. During that time, while they were in contact with their father again, Sawamura got into a heated argument with his father due to the belittling of his mother, which led to a physical altercation. After that confrontation, he and his father became estranged again. After graduating from the local high school, he decided he wanted to become an actor and to enter the entertainment industry. He figured nothing would happen if he stayed in Kagoshima, so Sawamura decided to move to Tokyo. With the encouragement of his mother, he moved to
Tokyo to pursue a career in acting. His father died when he was 19 years old. At the age of 20, he flew from Kagoshima to Tokyo with just
¥190,000 in hand from his savings at his part-time job in his hometown. When he finally got an offer, he worked as a fashion model with the aim of becoming an actor. However, Sawamura himself later revealed that he was unable to contact the friend who had promised to let him stay with them in Tokyo, and ended up sleeping in a park on his first day there. ==Career==