In the land known as Meichi, or the Underworld, the laws of nature are twisted: rotten fruit returns to the branches, gold drips down like water, and events beyond reason claim the lives of those who dare to enter. The scholar Ren arrives in this godforsaken realm driven by a desperate need to save his sick younger brother. With the help of a guide named Tobia, Ren embarks on a perilous journey to obtain the panacea, an ancient relic hidden deep within Meichi. What begins as a mission of faith and love quickly becomes a descent into the inexplicable, where the very fabric of reality threatens to break even the strongest mind. This dark fantasy follows Ren and Tobia as they navigate a world where survival demands confronting the impossible, and the cost of the cure may be far greater than anticipated.