Okayama at-large district
Okayama at-large district is a constituency in the House of Councillors of Japan, the upper house of the Diet of Japan (national legislature). It currently elects 2 members to the House of Councillors, 1 per election. The current representatives are:

 Kimi Onoda, first elected in 2016. Term ends in 2022. Member of the Liberal Democratic Party. Masahiro Ishii, first elected in 2013. Term ends in 2025. Member of the Liberal Democratic Party. The district has an electorate of 1,578,647 as of May 2021. Members elected to House of Councillors

References 

Districts of the House of Councillors (Japan)