In the tenth year of Tianbao, the heroic emperor Gao Yang played the hip-bone pipa and sang by himself. The accompaniment was bizarre, absurd, terrifying, desperate and painful.

That year, Liu Taozi, who lived by the Zhang River, caught some fish, and the story began.

Gao Shu transmigrated to a world of high martial arts, but for some reason, he was plagued by nightmares every night.

Fortunately, he knew a handsome, kind-hearted, and generous man named Brother Huang.

Gao Shu: Brother Huang, I often have nightmares at night. Is there any way to deal with it?

Brother Huang smiled slightly and took out a visualization method.

Gao Shu: Brother Huang, if I practice visualization techniques, will I be able to stop having nightmares?

Brother Huang smiled without saying a word, only nodding slightly.

Gao Shu: Brother Huang, I've mastered the visualization technique, and nightmares are no longer a big deal!

However……

Brother Huang has turned into a dried corpse and can no longer laugh.

Gao Shu: Brother Huang, you have been so kind to me, I will definitely find the murderer and avenge you!

Years later, the tall tree had reached the top of the world, looking down upon all living beings.

But he silently shed tears: Brother Huang, I'm so sorry!

All these years, I still haven't found the murderer, and I can't avenge you...

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...