Samurai Princess

Nagatsuke represents a cheerful juvenile girl in Japan. She attended school and gained many friends. Including her dearest friend, Kurata. They would hang out all the time until the apocalypse came and separated them. As miserable years passed, and the fierce fight against the mythical creatures in the deepening shadows continues, Sam comes back and she isn't the same. What happened to Kutata, when will the downright terror ever end and what realistically is this unfamiliar feeling...