Everything in the world has its value, but family affection is priceless. Even in a pragmatic, materialistic society, fathers will selflessly dedicate themselves to their children. Min Tianci became indifferent to family ties due to being abandoned by his father as a child, and he even refused to get close to children. Just as Min was enjoying his single life after a divorce, he was shocked to learn that he had an eight-year-old son, and the unexpected passing of his ex-wife forced him to reluctantly take on the responsibility of raising his son. On one hand, Min had to learn how to be a good father, and on the other hand, he had to deal with his difficult work partner, Kim Mi-jeon. Kim is a perfectionist who always demands the best, and having worked with Min for years, she knows his personality well. Over time, she develops feelings for Min while helping him take care of his son. By a twist of fate, Min, who has just become a father, reunites with his biological father. After many twists and turns, they finally acknowledge each other, but at this moment, his father falls ill and doesn't have long to live...