Ayaka recieves a letter telling her that she will become a princess. She gets really surprized, because she had never heard a person without royal blood becoming a princess like that. One evening, she goes out to take a stroll in the garden, when realises that she's lost! She gets scared, and passes out! When she wakes up, a battle is happening around her. She almost get hit by a sword, but a mysterious man will save her.