Prime Minister Sanae Takaichi achieved a legislative milestone on Friday with the passage of a revised Imperial Household Law, though her leadership during parliamentary debates has drawn scrutiny. The ruling coalition extended the Diet’s session until July 25 to advance the auxiliary capital bill, a move criticized by some LDP members for prolonging proceedings.
On 17 July, the House of Councillors approved amendments allowing adoption of male heirs (15+ years, unmarried) from former cadet branches excluded in 1947. This addresses succession concerns amid debates over gender roles, as females retain household ties post-marriage but cannot pass succession status to their offspring.
The law prioritizes household size to sustain ceremonial and administrative functions, with critics accusing the government of circumventing consensus on succession rules by implicitly including adopted males in the line. The Constitutional Democratic Party (CDP) highlighted this divergence, arguing it undermined prior agreements.
Conservative backing for the reforms aligns with efforts to reverse post-WWII occupation-era changes, though the bill passed the upper house by a narrow 184-57 margin. Takaichi hailed the outcome as “deeply moving,” underscoring its symbolic importance.
While succession reforms remain pending, the extended session aims to revive stalled discussions on designating Osaka as an auxiliary capital, a proposal facing upper house resistance. The ruling coalition may seek lower house reconsideration to bypass this obstacle.
Parliamentary tensions escalated as LDP legislators expressed frustration with Takaichi’s handling of the Diet, with some suggesting a no-confidence vote. The Prime Minister faced renewed questioning in upper house budget hearings, repeating earlier responses. Meanwhile, the LDP and Centrist Reform Alliance (CRA) agreed to a focused lower house committee session on 24 July, emphasizing Takaichi’s participation.
Frustrations grew among LDP ranks, with many arguing that earlier collaboration with opposition parties could have avoided the session extension and subsequent conflicts. The atmosphere underscored broader challenges in balancing legislative agendas with coalition dynamics.

