Cuz there really were like no Japanese Kpop idols before them
You had Takuya from Cross Gene and that was really it. And then some mixed race idols like Kangnam & Shoo
But then Twice came out with Sana, Mina, & Momo and a whole hoard of Japanese Kpop idols, both from girl groups & boy groups started coming out
Even groups with full J-Lines. J-Trinities in IZ*One & Cherry Bullet, & J-Squads in Treasure & Teen1419
Even moreso, there are Jpop groups with the Kpop concept such as their very own sister group NiziU, not to mention groups like JO1 & INI
All hail the holy J-Trinity






