Once upon a time, there was a witch named イレイナ (Ireina). This time, let's take a peek into the lives of the girls guided by her. Sisters searching for a new homeland and vampire sisters. An immortal girl and a long-lived dragon, along with their protector. The "Witch of the Night" and her talented witch apprentice. Two female students exploring history and the innkeeper guarding a mobile inn. A magical doll, a wandering gunslinger, a photographer, and an inventor, among others. The girls, led by their peculiar fates, were embarking on a new journey. "Someday, when you have some free time again." Enjoy the story of encounters and farewells, and the mysterious reunions that arise thereafter.