| DPJ : | Democratic Party of Japan and Club of Independents | |
| LDP : | Liberal Democratic Party | |
| NK: | New Komeito | |
| JCP : | Japanese Communist Party | |
| KP : | KIZUNA PARTY | |
| SDP : | Social Democratic Party | |
| YP : | Your Party | |
| PNP : | People’s New Party·New Party Nippon | |
| SPJ : | The Sunrise Party of Japan | |
| Ind : | Independent |