It's been five years since the devastating attack on Tenma's hometown. He's now trying to make a name for himself as an adventurer in Gunjo City, and his abilities and knack for magic are drawing all kinds of attention. After officially joining the adventurers' guild, he teams up with a trio of identical catgirl sisters. For their first quest together, they opt for something simple: slaying the wild dashboars plaguing a local village. There's more to this job than meets the eye, however, and the requester isn't who he seems to be... Can Tenma stay ahead of the treachery afoot?