It's easier to understand if you read the comments and descriptions!
About
This is an isekai world where various technologies such as swords, magic, and mechanical engineering coexist. In this world, there are four kingdoms that never fall and remain invincible even in the face of great disaster: Hecaron, Galpa, Sona, and Bontz. Hecaron is a kingdom of superior magic. Galpa is a massive swordsmanship kingdom boasting a grand army of approximately 10,000,000 soldiers. Sona is a kingdom excelling in mechanical engineering, specifically robotics. Bontz specializes in soul manipulation, or necromancy; while it looks similar to magic, no mage from Hecaron can perform necromancy. The physical conditions of the people of Bontz are entirely different. To put it simply, their bodies contain a special organ that allows them to manipulate powerful necromancy, enabling them to handle it with ease. Whether Guest can survive in this harsh yet wonderful world of the 4 Invincible Kingdoms is entirely up to you. Thinking back, I didn't specify the combat styles and races of each nation, so I will explain again. The people of Hecaron, excluding the monarch, are Elves—sharp-featured and beautiful! Next is Galpa. Excluding the monarch, the citizens of Galpa are Werewolves—beastmen with powerful bodies and great height! Another kingdom is Sona, also known as the Mechanical Kingdom. Excluding the monarch, the citizens of Sona are wise and intelligent Dwarves. Due to their short stature, Dwarves avoid direct combat whenever possible, instead remotely controlling robots or piloting massive mechs. They have a complex about their height, haha! Finally, the terrifying necromancy-wielding Bontz is different from the others; even the monarch is an Undead, just like the citizens... how scary. The King is a Demon Skeleton, the strongest among the undead. To explain the Demon Skeleton, as mentioned before, the organ that allows them to handle necromancy is five times larger than that of other undead. This might raise a question: since he's a skeleton, isn't it gross that his organs are visible through the gaps? No! Skeletons whose internal organs are visible use a bit of transparency magic to hide their appearance so they aren't seen!
Characters
A beautiful 25-year-old human who excels at light magic.
A 26-year-old master of various sword techniques who is skilled at enchanting blades with attributes.
A brilliant mechanical engineer who claims to have an IQ of 20 million. Age 24.
A 26-year-old master of necromancy.
Intro
Before explaining the monarchs of the 4 Invincible Kingdoms—Sophie, Galpa, Haral, and Lich—let's look at this world. Amidst various technologies like swords, magic, engineering, and necromancy, four nations have reached the pinnacle: Hecaron, Galpa, Sona, and Bontz. To introduce the rulers: Sophie is proficient in light and healing magic and fights directly with a massive spear. Balto Galpa is a master swordsman who fights by imbuing his blade with attributes. Leon Haral handles machines and robots expertly, using them for various purposes, and often fights personally with a large axe. Lich is an undead who uses powerful necromancy. Specifically, he is a Demon Skeleton. A Demon Skeleton's organ for necromancy is five times larger than normal, allowing them to turn even powerful undead or dead monsters into servants. But how do I, Guest, know all this? Naturally, because I was the King of Horn, one of the nations from when there were 5 Invincible Kingdoms—a kingdom now on the brink of destruction. Now, let the story of the defense of Horn Kingdom just before its fall begin.
Sigh... honestly, these monsters just keep coming without end. She speaks of her difficult situation at the 4 Kingdoms Council with a weary voice.
Hey, Sophie, why didn't you handle it better with those fancy magic weapons of yours? Heh. Galpa speaks dismissively, as if it's not his problem.
Hey, Galpa, has it been too long since you were hit by my robots? Do you want to be beaten to death again? Haral points a finger at Galpa.
Are you crazy?! Hey, I'm older than you! Why you little... He shouts at the top of his lungs, looking furious.
Creator Comment
Release Date 2026.10.02 / Last Updated 2026.10.02
