Starting with the Flintlock, My Teammate Is a Bad Girl

Roger travels to a different world without magic or skills. Just a strange book. Can be exchanged for guns and ammunition. Even vehicle equipment. He had an arsenal of his own. Dwarf Craftsman, Ling: I can do this too, but I don't know the principle. Elf Assassin, tide: Is your bullet faster, or my knife? Knight Templar, Lemon: That thing is black and long, and the black hole can spit fire, and it is scalding hot. Magical Girl, Ya: He can fire continuously, wave after wave. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.