Civilization: Egypt

Hey, everyone. I'm Xie Miao, a transmigrator. Yesterday, two Egyptian girls showed up, one with a chest as vast as the sea, the other as flat as a board. They said the Roman army was about to wipe out their people and asked if I could teach them how to use spears so they could fight back. I said sure, but you two are using cold weapons here. They're no good. She wouldn't take no for an answer. I said, little miss, what I have is a firearm. Modern warfare uses firearms. I took down a two-hundred-plus-jin Celtic strongman with one shot. She insisted on testing me, and I said fine. Before I knew it, she sprang to her feet, quick as lightning! Then she came at me with a left front kick, a right roundhouse kick, and a left jab. I couldn't block a single one. So I yelled, "Stop, stop! That's no way to fight fair!" She said she practiced ancient Egyptian martial arts, so what the heck did she care about fighting fair? I advised her to think long and hard about what she'd done. Natives and transmigrators should value peace, not fight among themselves. Come fight in my bed instead.

P.S. In short, it's a transmigration farming novel, the kind where the protagonist travels back and forth. By the end, his infamy is known from Ireland to Khitan, and both worlds have become connected in a strange way...