Hal, an infamous assassin was killed together with Bella, the famous inspector. They transmigrated to a world that they both known very well, Calradia Continent. The thing is, they know about Calradia Continent solely from a sandbox game they both loved! What happens when two people with polar opposite personalities need to work together? Follow the story about the idyllic male protagonist, Halcyon Rochabarth along with the pugnacious female protagonist, Bellicose von Meltor.