Umwubatsi w'imbere y'Ishuri Pure Semicircles ni umwubatsi w'imbere w'ishuri ryigisha (cram school) riri i Ibaraki, Osaka, mu Buyapani. Igishushanyo gitanga umwanya usukuye ufite imirongo n'imiterere byoroheje, bikaba bituma abanyeshuri bibanda ku masomo yabo. Icyinjira kigana ku cyumba cy'akwakira abashyitsi gifite imiterere ya kimwe cya kabiri cy'ikizenga (semicircular), aho indorerwamo yashyizwe hagati igaragaza ishusho ikarangiza ikizenga cyuzuye. Igisenge kigizwe n'ibyuma bya sitanleso birimo umuhengeri (ripples), gimurikwa n'amatara y'imirongo (linear light sources). Ibimera n'imbaho z'ibyuma by'ibiti (wood blinds) byongera ubushyuhe ku mwanya wera wagenewe kuba woroshye kandi utagoreka. Ibyumba bibiri byo kwiga birimo ameza y'hagati n'imbaho ziri ku madirishya.
Izina ry'umushinga : Pure Semicircles, Izina ryabashushanya : Tetsuya Matsumoto, Izina ry'abakiriya : Seigakusha Co., Ltd..
Igishushanyo cyiza nuwatsindiye igihembo cyumuringa mububatsi, kubaka no guhatanira imiterere. Ugomba rwose kubona ibihembo bya bronze byegukana ibishushanyo mbonera bya portfolio kugirango umenye ibindi byinshi bishya, bishya, byumwimerere kandi bihanga imyubakire, inyubako nuburyo bwo gukora.
