Mikuri and Hiramasa both work and share the housework. They enjoy a peaceful life together until one day, Mikuri finds out she's pregnant. They decide to get married, but they quickly run into challenges. Mikuri struggles with morning sickness, and Hiramasa decides to take paternity leave before finishing a major project. The couple has to navigate the unfamiliar territory of childbirth and parenting, facing some really tough times along the way.