In order to seek the seeds of young men, the female knight army reversed and moved to another world!!!!! The battle of the brides has begun. The protagonist is Nanao whose mother died and lived with her father. One day, the female knight Elise from another world suddenly appeared in front of him, and she was going to become his wife!? And not only Elise, the female knights sent out for the seeds of Nanao to announce their marriage one after another! ! The protagonist started a cohabitation life with the meat-eating sister. From cooking to erotic care, can Nanao's body bear it...!!?