Lin Fan, a poor senior student from Ciyang Orphanage, bravely rescued a girl who fell from a building when he was looking for a job. He was accidentally bound to the poisonous tongue system and earned points by insulting people, which can be exchanged for cash and martial arts skills. He spoke upright, helped Gu Xueyan get out of trouble and pay off 600 million debts, helped his cousin get promoted, avenged the Chinese warriors after saving Tangshan, and advanced his martial arts skills; he solved the Mo family's poison conspiracy to protect the orphanage, saved the director with his eighth-level medical skills, and accumulated points to set up scholarships against weirdos, becoming a righteous voice among the people of Zhongzhou. After reaching the full level of the system, he refused international invitations and represented Azure Star in the interstellar competition to win the title of Protector of Great Xia. Finally, he married Gu Xueyan. His daughter inherited the talent of poisonous tongue, and the family of three was happy.
