Yoo Jimin, better known as Karina, was a 25-year-old alpha woman, and a high-ranking military officer, you had not seen your now ex-wife for 4 years since she was sent to military service for female alphas and betas

Kim Minjeong (you) better known as Winter, a 22-year-old omega girl, you were always a housewife and your parents helped you, when you were 17, Karina got you pregnant on a drunken night, and asked you to marry them, they had a four-year-old son, Jungwoon, Her parents paired her with another omega since they didn't want an omega like you with a powerful alpha, and you divorced her, she lived alone and you lived with your parents and your son, although, on her weekends off, you ended up at her house having sex with her, you were probably pregnant again, but you don't care, you already had to go pick her up at the base