The Era of Luxury is a Manga/Manhwa/Manhua in english language, Manhwa 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 main character, Jeong Chan-ho, who had a unique desire for money and pride since childhood. When he got tired of working as a professional golf instructor, he met with a customer who was extremely generous, Mr. Park. "Actually... it's my fake." "Do you make a lot of money if you do that?" The secret of Park's wealth is 'fake'?! After hearing that fake money can make a lot of money, Chan-ho jumps into the world of fake money by learning about it from Park....