Kazokutchi is a work that consists of robots (referred to as “houses”) installed on a pedestal inside real exhibition spaces, and families of Kazokutchi, digital artificial lives that inhabit those houses. The data of each member of a Kazokutchi family (name, date of birth and family tree) are registered as NFTs and can be traded. Kazokutchi can reproduce by fertilising eggs, for which new NFTs are then automatically issued. For a successful fertilisation, two “houses'' need to be at an appropriate physical distance from each other during the breeding period.

With the behaviour of physical robots being reflected in the NFTs’ (blockchain) actions, and metaphors of human social life such as “house” or “family tree,” Kazokutchi contains various hints for discussing possible new social formats, including the meanings that such novel technologies as blockchains and NFT may assume within the human society.