"What about oxygen?"
"Simple. The Soul Candles from the West Sea can satisfy that need. While not their original purpose, they do indeed supply oxygen when lit."
A few blue candles appeared in the old salt's callused hands. Charles had seen them once before. Weren't these used to summon those little paper figurines? He truly hadn't expected that they could also provide oxygen.
After a full tour of the ship, Charles nodded in satisfaction. As expected of a top-tier ship designer. They've thought of every detail, both those I considered and those I hadn't. This level of modification was tantamount to building a new ship from scratch, yet these people had managed to complete it in just one month.
"Not bad. I like it a lot. Although I didn't say so before, I'll prepare the payment for the modifications."
