To begin with, he had planned to go to «Guryuu-en Great Volcano», and he thought of entrusting Myuu to Ancadi at that time. After all, it wasn’t right to bring along a four year old child into a Great Dungeon. As such, they didn’t have any problem of procuring “Serene Stone” while conquering the dungeon, and there was no danger for Myuu, a child from demi-human race, since the source of the rampaging magic power disease was known. In the end, it was a problem Hajime could solve while completing his own agenda.