The day before entering junior high school, I, Kuya Nonomiya, was taken by my father to a newly built 1DK apartment. There stood a extremely cute girl of the same age, Mea Chitose. “From today, you are newlyweds! You are to live together!” Introduced as a fiancé and forced to live together?! I was very confused by the sudden development, but Mea-san seems to accept it, as she said, “I’m going to be…Kuya-san’s wife” Her actions were extremely cute. I really got the desire to see more of Mea-san’s cuteness. Then, our newly-married life(?) between junior high school students began─