The repairing and maintenance were simple.

「Get up, join together, get out.」(Vandalieu)

He just needed to use【Golem Transmutation.】The pieces of rubble on the ground would grow arms and legs to move, join together, change their shape and return to their original form.

Constructing a building from scratch would still be difficult, but fixing one that had crumbled a little was simple. Thanks to the【Carpentry】skill, Vandalieu had a general idea of what he needed to do.

In Lambda, apparently the same skill was used to build both pit-dwellings for Ghouls and stone houses for Titans.

Not only did Vandalieu repair the buildings, he also used the【Engineering】skill to repair and maintain the roads and sewer system.

Talosheim had no waterworks system, but it did have a sewer system. They used a water-purifying Magic Item to purify used water while gathering the waste in one spot to ferment and use as manure.

Of course, since two hundred years had passed, this system was unusable without some work being done on them.

Vandalieu turned the ground surface into Golems to expose the sewer pipes, turned those pipes into Golems as well to repair the cracks and remove any blockages and applied the【Anti-Degradation】spell that he had learned after his skills leveled up before putting the ground back.

He supplied Mana to the water-purifying Magic Items.

He had Bone Man and the other Undead exterminate the unknown sludge-like monsters that had grown in the vats that were used for fermenting waste.

With all of these completed, the sewer system finally became usable again.

They would have to draw water to use from wells and waterways, but it was very convenient to simply be able to discard any used water.

After being alive in Lambda for three years, Vandalieu realized just how great the sewer systems of Earth were. He was especially appreciative of this because he had been Japanese.

After making everything usable again, he intended to have them maintained automatically by Golems.