After Handing Over the System, I Took the Nation to Scavenge in Another World

Heroine: Her mother died, and after her father remarried, he settled abroad with his new wife. She was raised by her grandmother, who left her a small villa when she passed away. She works a 9-to-9-7 job, and her greatest wish in life is to laze around. While traveling one day, she found a jade pendant that activated the Myriad Worlds trading System. Every child knows that if you find something, you should hand it over to the police. Since I found a System, of course I should hand it over to the police too.

Hero: The youngest special forces champion. He used to take on whatever mission was most dangerous. Now his job is to protect the heroine, both from danger in the various minor worlds and from being lured away by other countries in his own world.