Former environment minister Yuriko Koike of the Liberal Democratic Party was elected Tokyo governor Sunday, winning a landslide victory to become the capital’s first female leader.

Despite defiantly running without the LDP's consent, Koike, 64, defeated her two top rivals and will now oversee a city of more than 13 million residents.

"I would like to implement new policies that no one has ever seen," Koike told supporters as she learned victory was imminent.