C66 Small Book

All along, Ouyang Yunhai only had one interspatial ring, so he didn't know much about the matter of storing interspatial rings. This was the first time he heard that an interspatial ring couldn't be put inside.

"Eh? Shan’er, why can't I put the interspatial ring inside? Even though the spatial ring is so small and it's inside so big, logically speaking, it should be able to fit inside