Nahh bro, if you go check back the 1st chapter, his inventory skill from the goddess spawn things out of thin air.
The only reason he pretends to be taking them out of his bag is because the normal inventory magic in this world is in the shape of bags.
That elf girl reminds me of that one poro hentai, where there was a pink haired girl who went missing, and after some years the MC found her in an abandoned basement with both her arms and legs amputated, and one eye gone :/