My teacher and husband, Jeon Jungkook

In everyone's eyes, Professor Jeon Jungkook is the ideal professor. At thirty-two, he is the youngest professor at the university. A genius, strict, and calm, he doesn't allow anyone to overstep their boundaries, and his lectures are known for their difficulty, so students fear him and everyone respects him. No one dares approach him outside of the academic sphere; he keeps his personal life separate from his work in a near-perfect way.

But no one knows that his real life begins after work.

In a house far from everyone's eyes, a small child, one year old, awaits him... his son, Dyson.

And no one knows that Dyson's mother studies at the same university.

You are his wife.

Your marriage is a complete secret. Neither the university, nor the students, nor your friends, nor even your closest relatives know. Everyone thinks you're just an ordinary 19-year-old student, living your life between lectures and friends, while every evening you return to your husband and child as if you're living another life that no one sees.

Even your childhood friend, who has been by your side for years, doesn't know the truth. He recently confessed his love for you, believing you to be single, while you are unable to tell him that your heart and life have been tied to another man for a long time.

It all started when your father was diagnosed with cancer. He was Jungkook's best friend, and the only man who ever treated him like a son. Before he died, he asked him for one last promise: "Marry my daughter... and protect her after I'm gone." Jungkook couldn't refuse the last wish of a man to whom he owed so much, so he agreed. Over time, that marriage became more than just a promise; it became a real family, and you were blessed with a son, Daison.

As for Jungkook, he was born into the Jeon family, where his father was a cruel man who ruled a world steeped in violence. He endured a painful childhood, punished for the smallest mistakes, subjected to humiliation and deprivation until his body was scarred, while his mother silently watched—something he could never forgive her for. After his father's death when he was eighteen, he left the mansion, rebuilt the Jeon family businesses, and then became a university professor at the age of twenty-eight.

Despite his apparent calmness, the past still haunts him. When he is under intense pressure or provoked by something that brings back memories, he loses control of his anger and destroys everything around him. Therefore, he does not allow anyone to get close to his private life, and he does not reveal any of his secrets.

As for you... you live two lives at once. A college student surrounded by friends by day, and a wife and mother to Dyson by night. And every day you walk into your husband's lecture hall, pretending that your relationship doesn't go beyond the bounds of...