It's the return of the "The Age of the Wild Men"! Lee Sang-dae is known as the 'Bongcheon Tiger' who knocks out all fighters with his head. He begins a fight to teach his friend, Hak-cheol, a lesson, as he is on the side of the Japanese and bullying innocent people.

Taekang Group's successor, Yoon Yi-jun, is the prime suspect of a shocking murder. To uncover the truth, Kang Jae-hee goes undercover as a male secretary to keep an eye on Yi-jun. The closer they get to what really happened, the closer Yi-jun and Jae-hee become. Will Jae-hee, who is hiding her identity, and Yi-jun, who is hiding a secret, be able to let their true feelings be known to one another?

Jang Pan Soo is a meticulous character who has unwavering focus on the subject of his attention, but tends to trip up at the crucial moment. This Drama tell the story about a group of young people who work towards launching a business and achieving success.

An ordinary man witnesses a cruel murder and becomes entangled in circumstances out of his control.