Two-Way Time Travel Across Five Centuries: Using Technology to Change Two Worlds

This story follows Lin Hao, who gets a dual-world travel System after graduating from high school and changes both worlds.

The present is the focus, with the future as a secondary element. There is a female lead, but romance plays only a small part.

The plot moves along a timeline, starting with Lin Hao earning his first fortune in both worlds through his ability to travel between them. He then starts businesses, sells clothes online and offline, invests in phones, high-tech industries, and agriculture, and helps both worlds develop faster. Stock market trading is woven into the story along the way.