The "game world" is the place where people escaping from the "real world" go. Haseo, who chose the Multi-Weapon class as his character type, is one of them. He doesn’t have any specific purpose in playing the network game, "The World." However, an encounter with Ovan, a Steam Gunner who notes that Haseo possesses a hidden talent, changes that. Afterwards, he meets various other players, such as Filo and Shina, the Harvesters, and Ender, a Blade character. What talent does Haseo have? What is the purpose of the "Twilight Brigade," the guild organized by Ovan?