I just had the same idea, was he naked, using a bath robe or did room service give him clothes for the 500 gold, did he grt a tailor or metvhsnt come to his room. Transition.
1 oz of Gold American Eagle coin cost around 2k and he paid 500 gold coin for his room which equates to around 1 million dollars whoaaa, now thats really rich
This novel goes downhill soon, it seems the author has been replaced and all the runes have magically disappeared, no mention of runes for over a hundred chapters only beast taking and fights.