Former Speaker of the House of Representatives Oshima gave a speech in Tokyo. Oshima said a system should be considered to prevent dissolutions that could be perceived as aimed at maintaining power.

The Reiwa National Conference, commonly known as the Reiwa Rincho, was attended by experts from all walks of life, and cross-party members of the Diet who support the purpose of the conference. The conference held a meeting where Oshima, who serves as a special advisor, gave a lecture on the theme of the diet.