The ruling Liberal Democratic Party said Thursday that free education could be an issue deserving of consideration for a constitutional revision, in addition to the conservative party's quest to rewrite war-renouncing Article 9.

The LDP made the proposal at a meeting of the House of Representatives' Constitution Commission, but Komeito, the LDP's junior coalition ally, was cautious about the idea amid funding concerns.

The Democratic Party, the main opposition force, said it opposed the plan because the issue can be dealt with merely by drafting new laws.