Yin Stone...
Chen Qiu silently touched his own pocket. Whether it was in the form of a yin soul or a physical body, as soon as he entered the underworld, all items from the mortal world could not be carried over, except for his clothes.
It was considered a fairly humane setup.
It prevented one from entering the underworld naked and shivering after death.
He didn't have a single Yin Stone in his pocket. He could roughly guess what a Yin Stone was—likely it was a stone formed by the condensation of Yin Qi, just like Spiritual Energy.
One was the currency of the mortal world, the other, the currency of the underworld.
He did have quite a few Spirit Stones, but they were all in the small world and the Heavenly Dao Ring, none of which could be taken out, and even if they could, they would be useless.
