This game is a turn-based action RPG that moves around in a 3D space where you can enjoy various scenery with cute 2D characters. Operate the Kotonoha sisters and explore a fun and mysterious island!

After winning a trip to the everlasting summer haven Lysant Island in a raffle, the Kotonoha sisters arrived to days of rain that made for anything but a vacation!

And at a festival being held to clear the rain during their stay, the sisters get caught up in a mysterious incident...!

A miscellany of enemies attack the sisters, including the Goddess of the Sun, Demon of the Rain, and giant creatures! Will they ever be able to enjoy their everlasting summer island vacation?