From this, we can suppose that the envoys from the Sui Dynasty took the route via Hase-gawa River by boat, got off at Tsubaichi, got a welcome there and went to Oharida Palace in Asuka.
隋の使者は、初瀬川を船で遡り海石榴市で船を降り、市（衢）そこで出迎えられ、飛鳥の小墾田宮に入京したのであろう。