MTL - Rich Devil - Chapter 505 , plugging, inflation

Life in a noble house isn’t all luxury.Luan Meskevela never expected to wake up as the third son of a powerful duke. But when he’s transported into the world of Sigil Online, he finds himself gifted with two rare and powerful Sigils—abilities that make him a force to be reckoned with.Now, Luan's got more than wealth on his mind. He’ll charm a priestess, exploit a merchant guild, and maybe even befriend a spirit or two—if it gets him a better vintage of wine. With a mix of charm, wealth, and newfound power, he courts beautiful women, explores the world around him, and builds connections that could shape his future. Yet, beneath the surface, political intrigue and family rivalries threaten to disrupt his carefree life.In this new world, Luan plays for the thrill, not just for power. But as he enjoys the perks of his life, he soon realizes that every decision has consequences, and the people around him may not always be what they seem.

In the post-apocalyptic age, men were damned.

Being able to learn any skill immediately, and just by raising its proficiency, stand at the summit.

He is the World Chef Association Honorary Chairman, having the title of the World Chef God.

He is the greatest composer, pianist, and conductor after Beethoven and Mozart.

He also has the title of Underground Racing King, Fist King, Gambling King, Giant of the Stock Exchange Market, Arm of the Industries and King of the Skies.

He who has a miraculous learning ability and can stand at the apex of all things if he so wishes for it, the Omni Genius.

- Description from Novelupdates

He once stained the rivers and mountains with blood, his brilliance unparalleled. Unexpectedly, he encountered a great calamity, a dragon trapped in shallow waters, everyone thought he was nothing more than a useless son-in-law. But how could Gold Scales belong to a mere pond? The returning king, under the name of Frenzied Son-in-Law, with the War God’s stature, swept across the Eight Desolations of the Four Realms, the world trembled beneath his feet!