Become Ninth Uncle's Junior Brother

He had transmigrated to Uncle Nine’s world. This world was filled with bandits and demons. The protagonist is bound to the system. Ding! Entering the supernatural realm. "Sign in successful. Reward 1: Ten years of cultivation. [Reward 2: Peach Wood Sword] As long as they entered the supernatural place, they would be able to trigger a check-in. The protagonist brought the system and fought alongside Uncle Nine, slaying demons along the way.