[DeepL Translation - needs review] Introduction to Volume 1: One day, Mitsunami falls off a cliff and is transported to another world where the level of civilization is about that of medieval Europe. However, after a mortal struggle with a wolf, he learns that he can travel to and from Earth, and decides to live his life between the two worlds. The reason for this is to secure his retirement! Calculating his retirement fund, he needs 80,000 gold coins! To the extent that the civilization of ...
