Am I Really The Extra?

"Keith Wilson" the childhood friend of the heroine named Jasmine Scarlet who falls in love with the main protagonist "Tsukasa Nagumo" aka the dense and Harem protagonist of the manga that i read tittle [My Life Is A RomCom] that many people like. despite of the cringe and cliche moments, story is really nice especially Kieth known to be the friend of the main protagonist who's the comedic relief but i just can't believe that i got reincarnated as him. So what should i do? who knows. let's just enjoy this new life anyways.