第一章 我打恶魔？真的假的？ 

I'm fighting demons? Really?

When you wake up from your sleep to find yourself in a damp, dark, muddy trench, surrounded by soldiers trembling and praying, clutching crosses. —"The Second Battle of Ypres? No problem, just put on your gas mask, you'll survive!" —"The Somme? We can only leave our fate to God." —"Is it the Verdun meat grinder? Oh well, God's useless now, dying is just a fresh start." —"Wait, what does it mean that Duke Constantine led the last of the New Antiochian Knights to resist the attack of the demonic army from hell? What the hell timeline did this put me in?"... In 1099, the Crusades conquered Jerusalem, inadvertently opening the gates of hell. From that moment on, the timeline changed, and human civilization entered a thousand-year dark age of fighting against the demonic army of hell. And Liston, who traveled to this timeline, was clearly a doctor saving lives, but...

当你从睡梦中醒来，身处潮湿阴暗的泥泞战壕，周围的士兵握着十字架颤抖祈祷。——“第二次伊普尔战役？没事，戴好防毒面具，会活下来的！”——“索姆河地狱？只能将生死交给上帝了。”——“难道是凡尔登绞肉机？算了，上帝也没用了，死了就当重开吧。”——“等等，什么叫康斯坦丁公爵率领最后的新安条克骑士团抵御来自地狱恶魔大军进攻？这他妈把我干哪条时间线来了？”……1099年，十字军东征占领耶路撒冷，无意中开启地狱之门，自此世界线更改，人类文明进入对抗地狱恶魔大军的千年黑暗纪元。而穿越到这条时间线上的李斯顿明明是救死扶伤的医生，但...