I'm really a Kpop Idol

A huge fan of Kpop died in an earthquake that occurred at a concert and was transmigrated into an Alternate world that is completely identical to his past world with only one change, the Kpop industry.\nThere are no popular groups like BTS, TWICE, EXO, etc... nor do they have agencies like JYP, YG, SM, etc... No existences of the songs and the idols of his past world and it's a completely different...