X? Isn’t that like excretion?

Before remarriage, four people's family cohabitation began to build friendship and trust in order to become a true family!! Bo-ri, who only had a mother in her family, now has a stepdad and a step-brother!! However, Bo-ri only complains about her stepdad and her step-brother. Although her body is an adult, her immature little daughter keeps looking like a woman!