The "Game World" is the place where people escaped from the "Real World" arrive. Haseo, who chose multi weapon as his character's vocation, is one of them. He doesn’t have any specific purpose to play the network game, "The World". However, the encounter of Ovan, a steam gunner, changes him. Ovan says to him, "You have a talent". Since then, he meets various players, such as Filo, a harvest, Ender, a blade, and Shino, a harvest. All of them must be related to Ovan’s words. What kind of talent does Haseo have? What is the purpose of "Twilight Brigade", the guild that Ovan organizes?