I actually believe her story of getting scouted.
They just hand every girls passing by their business card and a weary eye weeb who knows no better can take the job/rural girls who comes to tokyou for the first time. You don't need to be super pretty just moderately attractive.
And just like Clara/Kiara, Japan has hundreds of kaigai idol group that went nowhere. Still has them groups now. Still unpopular as fuck.
But the one thing she might have been not open about/unaware of is that not all of them are only being gravure, probs some AV and host clubs might have been mixed here and there. It's actually normal for AV companies to pretend to be gravure/magazine model scouts.