[Introduction] Rintaro has a daughter named Airi. One day Airi and his sister Ema moved into the Asahina family. The two sisters received the care of the thirteen brothers of the Asahina family. Who can get more attention?
Subaru Asahina was shocked to find out that the school goddess moved into his house and became his younger sister;
Asahina Zao found out that her girlfriend had become her sister, and they broke up after being shocked;
Asahina Tsubaki was very happy to have two cute girls in her home and planned to share one with her younger brother Azusa. Asahina Azusa said to wake up and stop dreaming;
Asahina Ukyo feels that women cannot be trusted, especially those who play with their brothers' feelings;
Asahina is very happy that besides her brother, she finally has a sweet-smelling sister in her family;
Asahina Fuuto thinks that the two sisters are barely attractive but they are both idiots;
Asahina Yusuke felt... Forget it, no one cares what he thinks.
Intention: On the correct attitude in facing brotherly war