A shut-in from the twenty-first century transmigrates to the Hokage world and becomes an ordinary mortal with no cheat, no System, and no Kekkei Genkai. Drawing on the Black Mao legacy from his previous life, he refines corpses, ghosts, demons, and gu, rising step by step from an ordinary man. You can open the Eight Gates? Let’s see if you can hurt my incorruptible bones. Tsukuyomi? Let’s see if you can withstand the ghostly maze of a thousand-year-old vengeful spirit. Summoning beasts? Let me show you what it means to be suppressed by a divine beast’s bloodline. And if that’s still not enough, my gu insects can control the entire world. Kekkei Genkai? They’re nothing but resources for my growth.