The 27 year old Oguni is a former JBC and OPBF Super Bantamweight champion who is currently world ranked by 3 of the 4 world title bodies. Although relatively unknown outside of Japan he holds notable wins over Roli Gasca, twice, Hiromasa Ohashi, Masaaki Serie and Yasutaka Ishimoto. He's a skilled boxer-mover who quickly climbed through the ranks, claiming the OPBF title in his 7th bout and the Japanese title in his 15th contest. Between both of those he suffered his sole loss, a stoppage at the hands of Shingo Wake, the current IBF mandatory challenger.
As for Tawatchai he's better known in Thai;and, where he's part of the Kiatkreein stable, though he is also known in Japan where he fought his most notable bout to date, an IBF world title eliminator with the aforementioned Shingo Wake. Aged 30 the Thai is a veteran old the ring having debuted more than a decade ago. In that time he has faced numerous notable opponents including not only Wake but also Jonathan Baat and Daiki Kameda. Last time out he defended the IBF Pan Pacific Super Bantamweight title, recording a win over Shingo Kawamura.
On paper this is a really intriguing bout. The winner will be boosted up the world rankings, specifically the IBF, and may well find themselves taking a big step towards a rematch with Wake. The loser however will find themselves possibly falling out of the rankings all together.
For fans interested in this one, it will likely be aired live on G+ in Japan, and will be part of a card that sees Japanese 140lb champion Hiroki Okada [岡田 博喜] defending his title against Koichi Aso [麻生 興一], in what should be a thrilling main event.