The Genius Idol’s Strategy to Stardom is a Manga/Manhwa/Manhua in english language, Drama series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Once-in-a-millennium handsome trainee, On Ha-je, vows never to set foot in the entertainment industry again after rejecting a sponsor’s offer and losing his debut opportunity. That’s, until he is sucked into an idol training game. Between finding hidden talents and growing as an idol, dealing with a stubborn system, and solving the past of the character he embodies, he finds himself struggling with no money, no home, and no knowledge. But he exclaims, “This is a big deal. It’s fun!” He takes on challenges, pushes forward, and conquers them all. This is the story of the genius idol, On Ha-je, who isn’t just a handsome face, but a multi-talented individual.