Yohko Asagiri\'s an ordinary high school student in love with a boy who doesn\'t know it so she\'s written a song to explain how she feels. When she\'s listening to the song, however, she is transported to Earth\'s sister world Ashanti. Apparently, her song is quite popular with the locals. This song has the potential to open a dimensional gateway between Earth (called Noah by the locals) and Ashanti wide enough for a conquering force to invade and take over. This is exactly what someone wants to do. And, it i\'s exactly why it was forbidden eons ago by the legendary warrior Leda who saw this coming. It falls to Yohko and a few of her newfound friends to stop the onslaught and return the two worlds to balance. There are three on the side of order and an impressive army on the other...and the army\'s scared. Maybe Yohko isn\\\'t so ordinary after all.