Tomoki Kameda will take on champion Paulus Ambunda of Namibia for the WBO bantamweight title in Cebu in the Philippines on Aug. 1, the Kameda gym announced on Thursday.
"I'm simply delighted. Finally the moment has come," said Kameda, the youngest of the three boxing Kameda brothers, told a news conference in Tokyo.
Kameda, 21, who will be taking his first crack at a world title, made his professional debut in Mexico in 2008 and has won all 27 of his fights, 18 by knockout.
Koki Kameda, the eldest brother, and Daiki Kameda have both won world title fights. A victory for fifth-ranked Tomoki Kameda against Ambunda would make the Kamedas the first trio of siblings to win world crowns, according to their gym.
"That has been a long-held dream for the Kameda family," said Tomoki Kameda. "Since I was a little boy, I have trained with the aim of being a champion."
The Japan Boxing Commission became a member of the World Boxing Organization in April.
Under Japan Pro Boxing Association regulations, only national champions and winners of Oriental and Pacific Boxing Federation titles are eligible to challenge for world titles in Japan, so the Kameda gym had been looking to fight overseas.
Tomoki Kameda said he would want to unify the title against another world body's champ should he win his match against the 32-year-old Ambunda, who has a 20-0 record (10 KOs).