I Just Crossed over and Was Dragged Onto the Battlefield

My name is Muge, 18, a good young man from the 21st century. That day, I was sleeping at home. Suddenly, a hand dragged me off the bed and pulled the armor on my body... Armor! ? "Brother! Big brother! Don't be like this! It's a war! It's a war! Brother! We have something to talk about! Okay! It's a war! What's more! Why are you taking off my pants! Stop pulling my pants! Is there anyone in charge? No one has any business in this!"