Dong-soo, though seemingly timid and weak, is actually Iljimae, who unleashes his strength to defeat villains in crisis situations. He secretly loves Yeong-ok from the same company and courts her, but she rejects him, saying she prefers manly men like Iljimae. Faced with his persistent courtship, she agrees to accept a dating coach course fee, and the two enjoy their dates, with Yeong-ok gradually falling in love with him. Meanwhile, an incident occurs where Yeong-ok is kidnapped. This is because Yeong-ok discovered that the manufacturers of substandard food were also involved in drug trafficking. Dong-soo appears as Iljimae and engages in a fierce battle with the criminals. However, exhausted, he is imprisoned along with Yeong-ok. Yeong-ok, upon learning that Dong-soo is Iljimae, is both shocked and delighted. With the help of his friends, Dong-soo recharges his strength and defeats the villains. (Park Min)