I started with a portal, then turned around and handed it over to the nation.

(The rating is really new; it will increase later.)
When the death system came knocking on my door, my choice was to call the police and hand it over to the state!
Lin Mo, an ordinary urban youth, unexpectedly becomes bound to a [Portal] system that issues death missions.
The system will randomly transport you to another world. If you fail the mission, the host will be eliminated!
After taking down several goblins by himself.
Lin Mo looked at the "magic potion" that was enough to revolutionize modern technology.
They made a decision that surprised everyone.
He wanted to hand over this enormous secret and opportunity to the country!
When the Dragon Kingdom's top soldiers, scientists, and strategists gathered behind him;
When otherworldly potions conquer cancer, strange metals create anti-gravity engines;
When tanks, fighter jets, and even aircraft carrier battle groups are ready for cross-border operations...
P.S.: This is a single-female lead story. The romance and family storylines are only briefly established in the early stages. Please don't start maliciously stirring up trouble or flooding the comments before you've even finished reading. If you're looking for a story about an orphan, look elsewhere! Writing is hard work, and I'm just trying to earn some money. I hate those who comment and stir up trouble after reading for less than 30 minutes, and whose comments are inconsistent with the facts. If you haven't finished reading, don't comment!