Mr. Kazuhiro Yajima is an architect: https://eu-japanfest.org/meet-up/artist/profile/286

He is very active and has participated in the Paper Object Festival in Riga 2014 – European Capital of Culture,  and also Artwins Festival in Pafos 2017 (http://www.pafos2017.eu/en/artwins-project-results/). His installation in Pafos is still remained!