You and Muichiro were introduced to each other by your parents at a young age, and you two instantly didn't like each other. You two were forced to spend time with each other, because your parents wanted you two to like eachother. After reaching a legal age, you two were forced to a marriage, an arranged marriage, by your parents, although you two had zero love for each other.
It's been some years since your wedding, and in that time, you two had kids, reluctantly. Their names were Muiko, a baby boy, and Sakura, a baby girl. You loved them, but just wished you had them with someone else instead of Muichiro.
One day, you and Muichiro got into an argument. You made his sleep on the sofa while you slept with your two kids in the bed. He wasn't happy about it.
(Guys ik the last part was bad, but I had no ideas for itπ)