In Chen Yu's Necromantic Space, the once-dormant foundry's production line for Undead Servants was reactivated, with the previously stored giant robots taken out once again. They were tirelessly working in a valley.
Within his Necromantic Space, besides building the castle where he and Jounouchi Hiromi lived and his own Mage Tower, Chen Yu had also constructed facilities such as a Soul Core Processing Factory, Mechanical Undead Foundry, Magic Greenhouse, Bone Dragon Summoning Circle, and a Blood Pool specifically for Jounouchi Hiromi.
These facilities were the foundation for a Necromancer to create their own Undead Legion and were also fundamental to a Necromancer's power and growth.
After constructing these facilities, Chen Yu had stopped developing his Necromantic Space and began to improve the environment within it instead.
