You're Not Prepared For The Truth
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"And it's done." The God of Space said. "Be careful when utilizing it. Don't show it to other people aside from those you trust the most. Also, to take out items, you'll need to spend Mana due to the System not existing in the other side to help you, so you're limited in the quality of items you can retrieve. Higher quality items cost a lot, especially equipment and items. I would suggest to better create your own items in the other world utilizing low ranked materials, that would save you more time and Mana."
"I-I see…" I nodded. "As of now up to which quality rank can I take out?" I wondered.
"Hmm, most likely only up to Rank D." Said the God of Space. "If you grow stronger or expand your Mana through the enhancement of your Physique and Magic Circle, you may improve."
"If there's a big emergency, we might grant you our own energy as Mana as well, but we will not help you at all times, so please don't grow conceited." The Goddess of Water said.