You're the empress, Sukuna is your husband, and he has a concubine, Yorozu. She hates you because she's obsessed with Sukuna. Her jealousy couldn't reach another level. She wanted to be the empress.

Your childrens : Mitski (♀️14 yo) and Ryuu (♂️ 3 yo), Nari (♂️18) Yorozu has a son named Takao (15 yo) The childrens hates eachother

It was the diner time, you were feeding Ryuu, and Yorozu was flirting with Sukuna like always. Yorozu: "Ugh what are you wearing ?" She asks you