Okawahara Corporation (大河原財閥,Okawahara Corporation), or Okawahara Group (大河原グループ,Okawahara Group), is a large conglomerate. The Okawaharas' are considered "one of Japan's great family fortunes." They have ties to an American oil company. Currently the company is headed by Shigeru Okawahara'sfather. It is well known in Japan, much like Domyoji Group. A marriage between Shigeru Okawahara and Tsukasa Domyoji would have united the two companies, but it was ultimately called off.