The girls are the only ones at the school surrounded by water.
At the end of the path was a mysterious location, where familiar things existed inexplicably. At a school adrift in the distance, there lived three girls who had lost their memories.
Uniform Alt. Color costume is added for Ao, Kokoro, Rena, Yuki, Shiho, Hinako, Kirara, Hiori, Mio, and Uta, for a total of 10 varieties.