In 552 when Buddhism was allegedly introduced to Japan and Sho Myoo, the King of Baekje, sent Buddha statues and scriptures, Okoshi and NAKATOMI no Kamako insisted abolishment of Buddhism and they conflicted with SOGA no Iname, who was on the Buddhist side.
欽明天皇13年百済の聖明王から仏像や経典などが献上された時（仏教公伝）には、中臣鎌子とともに廃仏を主張し、崇仏派の蘇我稲目と対立した。