Best Child is a Manga/Manhwa/Manhua in english language, Comedy 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

The story begins with a beautiful girl, her perfectly fake smile, and the people who love her selfishly for it.What transpires behind the scenes of the glittering showbiz industry? How far would you go for the sake of your beloved idol? What would you do if you found out reincarnation was real? The star of the show is Aquamarine Hoshino and the stage is but a mere facade. Will he manage to reach the climax before the world of glamour swallows him whole