The Executed Sage Reincarnates as a Lich and Begins a War of Aggression

I transferred to the eastern part of the territory.

There was a vast river flowing there, sandwiched between forests on its left and right.

A ship was advancing along the river.

With the wind against their black sail, this was the ship of the Demon Lord’s Army.

Occasionally, unnatural acceleration took place, likely due to the propulsion power attached on board.

That ship was developed for combat, infused with various technical capabilities.

There was also a black shadow slinking alongside, parallel to the surface of the water.

Only its big dorsal fin was seen on the surface.

As the shadow eventually leapt up, it revealed its appearance when out of the water.