War of Resistance: Reborn on the Battlefield, My System Can Be Upgraded

[Light System + Portable Pocket Dimension + Independent Development + Underground Railway Network Connected to the Indestructible Unit]

Zhang Zilong unexpectedly was reborn into the War of Resistance era. After rescuing a beautiful bandit, he carved out a stronghold, built a mountain fortress, recruited troops and gathered horses, and raised the banner of the “Qingshui Stronghold” Anti-Japanese Volunteer Army. He blows the Japanese invaders to pieces.