Chen Mo, an overworked office worker who died suddenly from overwork, opens his eyes to find himself transmigrated as the third young master of the State-Protecting Duke's Mansion in Cangyang Town—a notoriously chubby, good-for-nothing playboy. While others transmigrate as immortal emperors with invincible systems, he is bound to a "Children's Idiom Dictionary." Scolding people deducts merit values, while flattering can actually level up? A single "sowing discord" makes treacherous officials turn on each other, a rendition of "Breaking Formation Tune" startles the imperial court's civil and military officials, and a stanza of "Water Melody Song" makes his name resound through the capital. Martial arts not good enough? Looks lacking? It doesn't matter; this young master relies on talent and idioms to turn this ancient world completely upside down. Watch how the chubby heir uses a dictionary to navigate the imperial court and counterattack his life.