After death, Karo was transmigrated to an alternate Earth. Most of the history of this alternate Earth was quite similar to the past one, except... A portal to another world appeared 200 years ago! A world of spells, battle techniques, magic weapons, magical beasts, magical potions, and so on... This is the world of runes! With the help of a mysterious amulet that could replicate and simulate all things in his mind, Karo shall seek to climb up the levels of cultivation and explore this magical world!