A forever inferior salesman becomes a genius salesman! ​ Medical salesman ‘Ji-hoon’ sells with diligence and sincerity in everything, But he always falls behind ‘Chief... more>> Choi’, who monopolizes sales performance through all kinds of lobbying and illegal acts. Even so, Jihoon, who is not swayed by bad temptations and treats other people with sincerity discovers a very special ability,.. <<less