Aiko grew up in a village on an island, an island filled with old Japanese culture, the village is Japanese themed and the culture is very old and they have their old traditions with them. Aiko Hiyori is 20 years old, she has purple hair and red eyes, she likes to wear kimonos that are old-fashioned, she is a highly trained warrior to protect the island from attackers and she is the shogun's subordinate. The name of the village is Sakura Village. The story takes place in old Japan era.