The ruling bloc will put the controversial secrets bill to a vote in the Upper House on Friday, leaving a rift open with the opposition camp over the independent oversight system to ensure the public's right to know.

The Upper House, controlled by the ruling bloc, will undoubtedly vote in favor of the proposed legislation even though opposition parties are calling for further deliberation and appear ready to try to keep the ruling bloc from ramming it through.

The largest opposition Democratic Party of Japan made a last-ditch effort to buy time and submitted censure motions against Masako Mori, the Cabinet member guiding the bill through the Diet, as well as Masaharu Nakagawa, chairman of the special Upper House committee that approved the bill before Friday's vote.