Luo Xiaohei: I Have the Shadow Corps

When people sit in the toilet, misfortune comes from the sky. While working hard on the toilet, Geng Lang is directly transported to another world by the great luck that comes from nowhere. When he opens his eyes, he has arrived at an unknown battlefield. He thought he was going to die soon, but the sudden appearance of the Black Shadow Corps prepared a weapon for Zong Lang and led him out of the battlefield to save his life. I originally thought I was traveling to an ordinary ancient dynasty, but I didn't expect to meet an old man who looked like a blue Christmas tree.