The muramai system refers to a sake rice dealing system which is concluded between sake rice production areas in Harima region and specific Kuramoto (sake brewer) including Nada gogo (five districts in Nada).
村米制度（むらまいせいど）は播磨地方の酒米産地と灘五郷をはじめ特定の蔵元との間で結ばれる、酒米取引制度（現酒造業者）のことを言う。