Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
Airi, a second year high school student who lived a peaceful life, meets a young man after school on a rainy day. He suddenly finds himself in a strange scene. The young man identified himself as 「 B-Usagi no Rain 」 and said, "Alice, you are going to be the queen of this world." The black world. A coup d'etat occurred in this country where another main character, Luna, is going to be the queen of this world. The close associates, Rain the B-Usagi and Snow the White Rabbit, who took a serious look at the situation, implemented a plan to "evacuate the queen to the white world and bring in a new queen candidate."
What is a secret hidden in two exchanged girls and two worlds?