Tears of black

Kira Aki a fallen angle adopts five year old Amai Ayakashi. Amai doesn't remember anything before she was five. 12 years later they are a famous assassinating pair. Queen Highness of Black Jade asks for there help in the battle to take over Japan. Prince Hikaru of Opal seems to know something about Amai's past. This story is just supposed to be practice for my English class however I would love to hear your opinions/suggestions on how to improve.