Senior lawmakers of the ruling Liberal Democratic Party agreed on Wednesday that while the party may include constitutional revision as an official campaign pledge in the upcoming Lower House election, it will not specify details on how it plans to revise the war-renouncing Article 9, three party executives said.

Instead, the LDP is likely to mention four subjects that have been under discussion since June: Amending Article 9 in general terms, creating three new separate articles to change electoral systems, providing free higher education and setting contingency legal power for the prime minister.

"Some media reported we've already agreed on how the Constitution should be revised, but that's not the case at all," said Okiharu Yasuoka, who heads an LDP panel tasked with promoting constitutional revision, during a general meeting at the party headquarters in Tokyo.