![The Royal Military Academy's Impostor Owns a Dungeon [BL]](http://static.novelbuddy.com/images/the-royal-military-academys-impostor-owns-a-dungeon-bl.png)
©Novel Buddy
PREVIEW
... ow to improve the ventilation system of the base, which is one of the most pressing problems for an underground shelter.”
As Su Mo sat on the stiff wooden chair that poked his butt slightly, he tried to recall the knowledge he had from the civilization era.
As well as shelter designs from doomsday movies…
Underground shelters required a large air filtration and regulation system, but having any ventilation ducts that connected to the outside was a safety hazar ...
YOU MAY ALSO LIKE
Chapter 169: So What if He’s the Crown Prince?_1
Chapter 1152 - Annihilation
Chapter 5850 Collect Ancient True Fire
Chapter 169: Frost Bear in the Forest