The Undying Mecha Emperor - Chapter 250 Military High Command

Yo, Hi! I’m Frank, I made a deal with a demon to pay me some money for receiving a guest for a few days every week.
I had no idea about what I have done.
On May 1st, Conan ‘the God of Death’ came to my house. I was forced to let him in and we get involved in a criminal case.
On May 8th, Bruce Wayne ‘Batman’ came to me. I was forced to follow him to fight crime.
On May 16th, Hannibal Lecter, The Silence of the Lambs, came to my home. I can only say that I really can’t stand my guests.

- Description from Novelupdates

The Great Norther Wall. The Dragon Knights. The Lords of the Winter Mountains. The Descendants of the Primordial Dragon. These are the various titles of the Grand Ducal Clan Ragnar, which boasted a rich, thousand year history. Theo Ragnar resolved himself to aiming for the throne of that very same clan. ‘These cursed chains weren’t something I could slip out of. They were meant to be broken with strength.’

In a certain empire, a young prince was born with a golden pickaxe. It should have been seen as a miracle or a blessing, but instead, the emperor wanted nothing to do with the child. He refused to accept a prince blessed with what he considered a commoner’s job, fearing it would taint his royal bloodline.Abandoned by his own parents, the young boy, Shennong, was taken in by a succubus.But neither the succubus nor the emperor knew the truth about him—Shennong was no ordinary child. He was a reincarnator.This is the story of how the world of Matay reacts to the birth of the first Sandboxer, a class unknown to many. Will Shennong forgive those who abandoned him? What was the purpose of his reincarnation in this world? What is the true nature of the golden pickaxe, and what does it mean for Shennong?One thing is certain—Shennong is not alone in this world because he had a true sandbox system and people to support him even in this world.Join him and experience a true sandbox adventure!

The empire has turned into the land of the undead due to a spell gone wrong. God summoned heroes from countless worlds to purify the empire and plant new hope. Lee Shin Woo, an ordinary earthling, was also summoned. As an undead, that is.