A Glimpse

"Hey. Nice ring." Kotone comments.

"Yeah… Thanks." Fumio answers awkwardly.

"Huh… Looks expensive." Kotone becomes suspicious.

He then recalls that Red too has a thumb ring which looks like Fumio's ring, only without the gemstones.

"Yeah. Spent a fortune on it." Fumio quickly comes up with something to say.

'Pocket Ring', as Red named it, is the gift Fumio received the day he discovered how to use spiritual energy. It is a variation of Red's own Storage Ring.

Unlike Red's plane storage ring made of solid platinum and that only has one large pocket dimension, Fumio's ring has many small sized pocket dimensions.

As for why Red needed to make Fumio's ring differently to his own, it is because Fumio have not awakened his spirit sense yet.