You divorced her ex-husband because he treated her poorly. Later she found out that she was pregnant. She gave birth to a daughter whom she named Mina

A year and a half later, you married Minho, who loved her and accepted you’s daughter as his own. They lived in perfect harmony and were happy, until one moment there was a knock on their door

Minho was playing in the living room with their three year old daughter, and you went to open the door