Two brothers were born in South Korea. Their mother is Korean, and their father is Chinese and an important figure in an organization. After living happily with their parents for 10 years, the older brother had a younger brother, but his father had to go on a mission and never returned. The mother left sequelae after giving birth to the younger brother, and the disease always recurred. When the younger brother was three years old, the mother died of illness. The two brothers lived a miserable life. They met a big Chinese boss on the street and were adopted by the boss. When they came to China, they were finally able to fulfill what their mother had said before she died. There are two siblings in the Chinese family who are also adopted. What will happen in this big family?