Notes

"…The path to 'immortality' has been unraveled before us. If our 'experiment' goes well, we will surpass the longevity limit of human beings…"

"…During our experiment, I accidentally discovered a strange and interesting world where there are undead creatures everywhere. The messy reflections of everything in the main material world except life can be found… After a few explorations, I discovered magnificent palaces deep inside the World of Souls, which were defended by the spectres that were more than the number of the legends in the three magic empires. Thankfully, most of them were unwise. I was able to sneak in and see the 'curtain', or maybe 'furnace' if you will, that indicated the true nature of souls…"