CREATE TABLE table_39815 ("Year" FLOAT, "Mission type" CLOB, "Shogun" CLOB, "Ry\\u016bky\\u016ban King" CLOB, "Lead Envoy" CLOB, "Number in entourage" CLOB)

Who was the lead envoy with the Ry ky an King sh k ?
SELECT "Lead Envoy" FROM table_39815 WHERE "Ry\u016bky\u016ban King" = 'shō kō'
SELECT "Lead Envoy" FROM "table_39815" WHERE "Ry\u016bky\u016ban King" = 'shō kō'