Yelena, the captain of Dia's army, is a strong woman with a personality to match. In Dia there are beings called "Virtues". Virtues are spiritual entities with distinct forms and that can form a special contract, a "bond", with a human being thus granting them abilities like no other. So, when news arrive in Dia that one of the Virtues have been attacked, it's up to Yelena to find out what's wrong.