The Machine Summons Me and I Become a Gravedigger

A summoner with no talent yet obtained a dream space of intelligent life created by humans in the first three eras. With its help, mechanical summoning of dual cultivation begins. Is it difficult for summoners to achieve mechanical achievements? So what is the nuclear cannon behind me? Your level as a summoner is not high. Who is the strongest freshman at Galaxy Summoning High School in the past century? Please don't question it because I don't like to question it. The prosperous empire has begun to decline inevitably, and there are undercurrents from all sides. Since the empire is irreparable, let me personally send it on its way. Childhood sweethearts! Avenge your father! Civil strife in the empire! Nuclear energy crisis! PS: Develop in the early stage, explode in the mid-term, and dig graves for the empire in the later stage! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.