I woke up in a forest. It seems I've become a ghost. I seem to have my memories (or rather, knowledge) from before I died. From there, the story of Shu Arklight began. Using the power of life absorption to steal magical power, accumulating it to evolve. Analyzing magic to increase combat power. This is a story of the protagonist, who came to be called the Pluto King, and his witch partner as they travel the world and do various things.