Biro Duplicated Edge ni igishushanyo cy’ishuri ryitegura rya Toshin Satellite i Kawanishi, mu Buyapani. Ishuri ryifuzaga kwakira abantu bashya, kugisha inama hamwe n’inama mu cyumba gito cya 110sqm gifite igisenge gito. Igishushanyo cyerekana umwanya ufunguye waranzwe no kwakira inyabutatu ityaye hamwe na compte yamakuru agabanya umwanya mubice bikora. Impapuro zitwikiriye urupapuro rwera ruzamuka buhoro buhoro. Uku guhuza gukopororwa nindorerwamo murukuta rwinyuma hamwe na paneli ya aluminiyumu yerekana hejuru ya plafond yagura umwanya mubunini bwagutse.
Izina ry'umushinga : The Duplicated Edge, Izina ryabashushanya : Tetsuya Matsumoto, Izina ry'abakiriya : Matsuo Gakuin.
Iki gishushanyo cyiza nuwatsindiye igihembo cya zahabu mugihe cyo kumurika ibicuruzwa no kumurika imishinga yo gushushanya. Ugomba rwose kubona ibihembo bya zahabu byatsindiye abashushanya ibishushanyo mbonera kugirango uvumbure ibindi byinshi bishya, bishya, byumwimerere kandi bihanga ibicuruzwa byo kumurika nibikorwa byo gushushanya imishinga.
