This is a story about Kate, a young adventurer who travels around the world to improve her swordsmanship. As she was traveling, she came to a port town called Varkatos. She planned only to stay for a couple of days to rest, see what the town has to offer and then continue on her journey, but before she could even get a proper rest the town got attacked at night by giant ants. Being an adventurer, Kate instantly jumped in to help defend the town. With the help of other adventurers, Kate was able to repel the ants and defend the town, but unlike what she thought at that time, this was just the beginning of a long and harsh adventure.