Eighteen years ago, Sister Mo Ning, the eldest daughter of the Mo family of three major families, brought back a baby boy and named him Mo Tong. She hid the baby's life experience. Because of an assassination attempt, Mo Tong was accidentally injured in the eye and suffered sequelae. Due to an eye disease, Mo Ning sent Mo Tong to the family of an acquaintance who had studied medicine for generations. Later, Mo Tong received the news that his brother was being kicked out by the elders of the three major families, the Chen family, and was involved in the war between the families.