Eighteen-year-old Hiroto Shimazu says he can't wait to cast his ballot in Sunday's Upper House election.

"We're the ones who will lead Japan in the future," he said. "I hope there will be more policies in favor of young people like us."

For the first time in Japan, those aged 18 and 19 will be allowed to vote in a national election after a new law took effect on June 19 lowering the voting age from 20 to 18.