Inoue, a former amateur stand out, began his career last August in a fantastic all debutant contest with Daishi Nagata, a bout that ended in a draw. Since then he has won a trio of bouts included a wide decision victory over Kota Oguchi and a couple of blow out wins against against limit Thai visitors. Although unknown outside of Japan there are high hopes for Inoue who is seen as a really promising 25 year old, as seen by the fact he's already fighting in 8 round bouts.
Although not as talented as either Naoya Inoue or Takuma Inoue it's fair to describe Takeshi Inoue as a genuine prospect with hopes of winning titles, at least at the national level, somewhere down the line. Entering this bout he's already ranked #12 at Welterweight by the JBC whilst boxrec.com rank him as the #13 best Light Middleweight in Japan.
Narita is also relatively unknown outside of his homeland though he did have a stellar 2014 by claiming the Japanese Rookie of the year title at Middleweight and scoring 4 wins in the year. He began 2015 with his best win to date, a split decision victory over Yusuke Konno, though was beaten last time out by Hironobu Matsubaga, who himself came runner up in the 2014 All Japan Rookie of the Year at Welterweight.
Stood at 5'11" the 24 year old Narita is a taller fighter for the Light Middleweight division and will have a natural size advantage over Inoue though he doesn't have the same amateur background as his opponent who really did impress on the domestic amateur scene. Incidentally Narita is himself ranked by the JBC, #6 at Light Middleweight whilst boxrec.com list him as the 16th best Light Middleweight in Japan.
Whilst the bout likely won't get too much interest in the west it really is a fantastic match up and one that could well see the winner move towards a title fight for either winter this year or very early next year.