The Tomin First no Kai is a right-wing populist regional political party in the Tokyo metropolitan area of Japan, founded on 23 January 2017 by Governor Yuriko Koike after splitting from the Liberal Democratic Party of Japan. It advocated for open government, proper use of public funds, and stricter penalties for public smoking, but its "Tokyo's Great Reform" platform was pragmatic and vague and attracted many voters who simply wished to prevent the LDP from taking control of the local legislature in the wake of the party's recent scandals. In September 2017, it was transformed into a nationwide political party, Kibō no Tō.
The party focused on local governance and aimed to prioritize the interests of Tokyo residents, and it won the support of urban voters due to its focus on addressing transportation, housing, and infrastructure issues; reform-minded voters who were frustrated with the perceived lack of transparency and bureaucratic inefficiencies in the metropolitan government; anti-establishment voters who were dissatisfied with the established political parties; supporters who admired Yuriko Koike's leadership style, policies, and previous achievements; and centrist and independent voters who sought a balanced approach to governance.