Nevertheless, cultural and economic contacts continued and, in the Satsumon period, a Makki (Ezo-style) tomb was constructed inspired by tombs in the Dewa region and Wado Kaichin coins have been unearthed in Eniwa City.
しかし文化・経済の交流は続き、擦文時代には出羽地方の古墳の影響を受けた末期古墳が築造され、また恵庭市では和同開珎も出土している。