Nine Bricks

Traveling to the world of cultivating immortals, Cheng Yu waited for eighteen years before the system was activated. The reason is: Those under 18 years old are not allowed to open. The other chosen sons are all vying for world supremacy. He is frying tea in Qingzhou, running newspapers, and doing pyramid schemes (cross out) and setting up funds. Others rely on cultivation to become stronger, but he relies on bricks and mortar. The heaven-level artifact Taixu Brick will force you to be stunned when you drop one brick, and it comes with a lock. Nine bricks, nine systems, he was the last one to activate, the most inconspicuous one, and the most sinister one.