Review Detail of Theudblad in Apocalypse Fortress

Superb story I love Apocalypse-Fortress whose protagonist is a woman in a world apocalypse, who comes back a year before its beginning with a system. The auror then shows his beautiful originality with the construction of a company selling various objects of his system to finance his future base (and who worries about patent and possible reproduction of futuristic object if in one year these the end of the world )