Yozora Housen is the Head Commandant of an army and has always been strict, cold and doesn't open much to people. One day, seven mercenaries come to the palace where she works for a job. She comes across the leader who appears to be someone from her past, but she can't seem to guess where. Our story is where Yozora opens up to this person slowly, and gets closer to him, but can she win her own feelings without getting hurt? Will anything surpass the connection between her and this boy?