Résumé
Ai is an alien who found herself on the streets of Tokyo with her clothes and her memory in tatters. Thanks to the kindness of a handsome, young college librarian named Kent, Ai started to piece together her past while she found work as a singer to earn some money. When a strange, dragon-winged female assassin from Ai's homeland tried to kill her, Ai agreed to a recording contract with H.T.A. in the hope that the powerful corporation might protect her from her enemies while enabling her to unlock her memories.