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After judging that he was trustworthy, I decided to allow the Merchant to enter my territory. I conjured a special invisible barrier made of spiritual energy around his body too, so if he ever tried anything funny, this barrier would stop him from harming others. He was very weak, so I doubted he could do much himself, but you never know.
I cannot completely trust him, but some of my friends have already logged in inside the city, I want them to exchange some items at least, before he leaves somewhere else beforehand.
"Ooh, such a beautiful place, filled with life and colors! A very rare sight compared to the darkness of our world." The Merchant sighed in disbelief. "Ah, my manners are quite terrible today, aren't they? My name is Julius Skeletridge, when I was alive I used to be a rather hardworking merchant! Until a band of malefic thieves took away everything I had and burned me alive, ahahaha!"
Check "The Protagnist's Sister Is Actually the Strongest"!