For Inoue this is a step up but after his 10 round domination of Yuki Sano no one is doubting the youngsters ability to reach the top in double quick fashion.
The two men will meet on August 25th at the Sky Arena, Zama, Kanagawa.
This is just one of a number of highly promising Japanese national title fights that are scheduled for the rest of the year.
In July we have a Bantamweight title defense by Kohei Oba (33-2-1, 12) who won the title in March. Oba will be facing Satoshi Niwa (15-15-2, 3) who brings a 5 fight winning streak to the ring but looks hopeless over-matched here.
July also gives us the historic Heavyweight title bout between the once beaten Kyotaro Fujimoto (6-1, 4) and Okello Peter (21-6, 19). This will be the first Japanese Heavyweight title bout in a generation and only the second in history.
We also get a Super Flyweight title bout in July as the unbeaten Teiru Kinoshita (17-0-1, 3) makes the 4th defense of his title and takes on former world title challenger Junichi Ebisuoka (23-15-5, 10). Like the Oba/Niwa match this looks to be a mismatch.
August appears to be a busy month. Not only do we get the Flyweight bout between Inoue and Taguchi but 4 other Japanese titles bouts.
On August 3rd the Korakuen Hall hosts a Japanese title double header as Daiki Kaneko (18-2-3, 11) defends his Super Featherweight title against Mitsuya Omura (16-7-1, 12) and the hard hitting Tomohiro Ebisu (11-2, 11) defends his Middleweight title against former 2-weight champion Daisuke Nakagawa (21-3-2, 16).
Just 6 days after the Kaneko and Ebisu double header title action returns to "The Hall" as Hidenori Otake (20-1-3, 9) defends his Super Bantamweight title against Yukinori Hisanaga (15-4-2, 9). A win here may see Otake moving towards a fight for the OPBF title against the talented Shingo Wake.
Only a few days after the Otake/Hisanaga bout Keita Obara (8-1, 7) will defend his Light Welterweight title against So Takenaka (18-6-2, 8). This looks likely to be the final Japanese title fight before the Inoue/Taguchi bout that we expect will be televised on Fuji TV.