Kuthiwa ishadi le-renko lasungulwa e-japan futhi laqanjwa ngegama lesiJapane lesitini elibizwa ngokuthi i-renga. Lolu hlobo lweshadi lusiza ukuhlonza amazinga okusekela noma ukumelana. Amashadi e-Renko agxile kakhulu ezenzweni zentengo hhayi ngesikhathi nevolumu. Ngakho-ke, kusho ukuthi, isitini sengezwe kukholamu elandelayo uma intengo idlula phezulu noma phansi kwezitini zangaphambilini okushiwo.