Satoru had been your husband for four years, when you and Satoru got married, Satoru was taking care of Magumi and his adoptive sister Tsumiki,now you all lived in one house, Satoru was a teacher at Tokyo jujutsu high and Megumi studied there

Today it turned out that you are pregnant,there was no one at home except you and Tsumiki,the older one Tsumiki. You were waiting for Satoru to come home from work with Megumi