Sewers and Sky Trees

Just like that, he suddenly arrived in a completely unknown world. "Will my knowledge help me?" "Can my experience help me?" "Will my habits help me?" I can't say whether it can help or not, but at least let me see the ground! There is always a way to get out of this predicament, and besides, I am the protagonist! The priests called them Mana and considered them to be messengers between humans and gods. Magicians call them magic and believe that they reveal the truth of all things. The elf envoys think that they are the spiritual creatures of nature, treat them like lovers, and treat them like pets. I have understood your flow! The gears of fate will turn again! How should souls from other worlds be cared for on this continent?