In 1937, deep in the Changbai Mountains of Northeast China, there lived a giant named "Daniu". He is two meters tall and can fight bears, but his mind is always at the age of five - he can only count to ten, and the only word he recognizes is his own character for "cow".
Eighteen years ago, a man covered in blood entrusted him to the old Orion Uncle Shi, and he hid in the mountain village ever since. When the Japanese's bayonets opened up this paradise, and when Uncle Shi's blood dyed his hands red, this "silly wolf" roared like a beast for the first time.
He can't shoot, doesn't understand tactics, and can't even tell the difference between the enemy's and ours' military uniforms. All he knew was that the ones in yellow leather made Grandpa "fall asleep", so he wanted to tear them all into pieces.
He has no faith and does not understand his family and country, but he has the simplest logic: whoever bullies grandpa will die.
When this humanoid beast rushes into the battlefield with the innocence of a five-year-old child and the strength of a giant, he will use the most primitive method to tear apart the Japanese army's steel defense line. The enemy called him the "Nightmare of the Kwantung Army" and his comrades called him the "Wolf Boy". And he only remembered what his grandfather said before he died: "When you meet bad people in the future, just like breaking the neck of a bear, protect yourself!"
This is the story of a fool who uses the stupidest way to protect this land.