Transmigrating Between Two Worlds, I Rise with My Motherland at My Back

[Travel between three realms + urban fantasy + high-martial world + national destiny + multiple heroines + pure power fantasy]

By sheer chance, Li Wenwu gained the ability to travel back and forth between the modern era, ancient times, and the War of Resistance era. At first, he used his golden finger to trade goods between the two worlds. As the protagonist's abilities grew stronger, so did the obstacles in his way. In the middle and later stages, he brought modern production technology back to ancient times, helping ancient nations rule the world. During the War of Resistance, he fought the Japanese alongside the Eighth Route Army. The ancient world would use Li Wenwu as a link to give back to his homeland, ultimately bringing about the great rejuvenation of the Chinese nation.

This is a new author with a new book, so please be kind! A salute!