Muraoka was indicted in the Japan Dental Federation Black Donation Case [ja], so did not run in the 2005 election.

They held a rematch in 2009, but this time were upstaged by DPJ-ite Kimiko Kyono, leaving both of the others without seats.

Toshihide had joined the conservative opposition Japan Restoration Party, and was elected proportionally from the group.

However, he was defeated by six points, and Toshihide was unable to be resurrected proportionally due to the poor performance of Kibō nationwide.

Toshihide did not run for the seat in 2021, and Minorikawa only faced a JCP challenger who was dispatched by a wide margin.