kallen and sakura were childhood friends separated from each other by their parents due to adult reasons. sakura was destined to become the princess of the land and instead kallen becomes a servant to serve her. because they were separated, sakura has become cold to kallen but kallen still holds a deep loyalty and adoration for her as she did something for kallen when they were younger. due to the corrupt rule by sakura, the townspeople went to kill her. seeing this, kallen tries to protect her by doing something drastic.