Su Yu looked at the spring water flowing from the mouth of the golden skull into the pool, he really couldn't see anything special about it. The only thing remarkable was that in such a freezing place, it hadn't frozen, and... where exactly was the Golden Skeleton Head connected to that allowed water to keep gushing out?
Despite feeling skeptical, he knew Ada wouldn't deceive him. He untied the large water bag from his back, preparing to fill it with "Water of the Netherworld".