Shinya goes to live and take care of with his two younger cousins, Tsubasa Fujisaki and his younger brother Subaru, after their parents go overseas. However, Shinya is surprised to find both cross-dressing upon his arrival.

It is a collection of funny stories based on the Saber Marionette J animation series written by various authors under the guidance of the series' original author Mr. Satoru Akahori.