Skeleton Lord: Start with a Skeleton Soldier

Zhongli traveled to another world and was bound to the Skeleton Lord System. The system allows him to toss back and forth between the Skeleton Plane and the Canglan Realm. Develop a skeleton army in the skeleton plane and summon it to the Canglan Realm to fight against demons. The other world is going to be ruined by Zhongli. Let's see how the protagonist builds his own skeleton territory starting from a skeleton soldier...