Inside the box.

Xuanyuan stared at Song Yan tightly: "Do you know the frontier battlefield?"

Song Yan nodded: "You know, there are seven frontier battlefields on the demon border, and three frontier battlefields on the demon border."

Xuanyuan continued, "Since you know, the boundary between man and demon is still peaceful and there are few battles, but the seven battlefields on the boundary between man and demon are common. Our contest is to kill demon tribes on the battlefield of blood river.

The devil tribe is born with a strong physique. Even if they don't practice, their strength will reach the level of a gas-smelting warrior when they grow up....