Three Days Across the Border, I Took My Sister to Find a Way to Survive

The wind in Black Sand City can grind people to death. Qin Chuan only had three days left. My sister's lungs can't hold it anymore. Until he picked up a "door" in Area 7. ——You can go to other worlds. Three days at a time. One month to cool down. If you take others with you, you will be suppressed by the world. He didn't hesitate. The first door leads to the snowfield rivers and lakes. The second door is further away. He doesn't need to be invincible. He just needs- In every world, Protect those you want to protect.