River Space is a brand new NFT artwork
It is a scene/area or even a silhouette of the whole world that takes place in the Bianriverse.
You can obtain it by choosing the right rivermen to combine.
Rivermen:https://opensea.io/collection/rivermen
RiverEstate:https://opensea.io/collection/riverestate
RiverArt:https://opensea.io/collection/riverart
RivermenGift:https://opensea.io/collection/rivermengift