Mob kara Hajimaru Tansaku Eiyuutan - Vol. 2 Ch. 11

[JaBBerSmack]

Lmao, I like this ossan

I think he uses the mc's naivety to scam him. Like selling the tungsten rod for more money than its worth and the hi potion being empty. 20 bolts for 100k was probably a fib as well. He's helping him but also taking him for a ride.