LOS ANGELES — Three-division world champion Junto Nakatani is filled with moxie.

The Ring’s No. 7-ranked pound-for-pound fighter and WBC bantamweight champion has knocked out each of the last four opponents faced at 118 pounds, and he's looking to do the same again when he takes on IBF beltholder Ryosuke Nishida in a title unification fight Sunday at Ariake Arena in Japan. Since the matchup features The Ring's top two-rated bantamweights, the vacant Ring title will also be on the line.

"I am always looking for the knockout," Nakatani told The Ring in an interview following a recent training session at the L.A. Boxing Gym. "Unifying the titles is very important for me. It would be an honor for me to win The Ring belt."

Nakatani (30-0, 23 KOs) has grandiose plans featuring matchups against opponents from a variety of divisions. "Big Bang" has welcomed fights against the likes of world championship trio Jesse "Bam" Rodriguez, Naoya Inoue and Rafael Espinoza.

The Inoue encounter appears likely for May if they each continue crushing the competition.

"A lot of people say that Nakatani is the guy that could beat Inoue," Nakatani co-promoter Bob Arum told The Ring. "That’s why it's such a big fight. That's a real, real fight. People who really know and follow those lower weight divisions, they think that's as interesting a fight, if not more so, than Canelo and Crawford. And it'll be the biggest fight ever in the history of Japan.

"All of these Japanese fighters in these lighter weight divisions, all the top guys, they can really fight. They're really disciplined. The guy Nakatani is fighting is very awkward and a southpaw. but Nakatani is well-trained. I think, next to Inoue, Nakatani is the best Japanese fighter out there."

Nishida (10-0, 2 KOs) is another Japanese champion looking to crash the party with an upset win. DraftKings lists Nakatani as a minus-1000 betting favorite and Nishida as a plus-550 underdog.

"When I faced off with him, I could tell he was ready for the fight," said Nakatani. "I know he's going to come prepared, it's a difficult fight, Nishida has good timing. I have to stay focused and attentive the entire time. Without winning and continuing to win, the Inoue fight isn't happening - my job is to be successful on June 8.”