On the Verge of Insanity

Ban Seok gets transferred to Hanmyeong's Development Team but bumps heads with Se Gwon, the team leader.

Ban Seok gets sent to work in HR, but Ja Young disapproves of him and tries looking for a way out.

Ja Young welcomes Ban Seok to the HR Department but gives him a difficult time in his first task.

Despite getting blamed for crudely making an allegation of sabotage, Ban Seok proves his worth in HR.

Ja Young looks for a way to reduce Changin Business Department employees by 40 percent with Mr. No's orders.

Ja Young asks Ban Seok for his help with the job adequacy test and promises to grant him something in return.

Ja Young gets a bit too drunk and regrets what she does. Making matters worse, she has to fire Ban Seok.

Ban Seok discovers corruption involving the director and reports it to Ja Young to follow through.

Se Gwon confesses to Ja Young about the defective chips installed in the dishwashers and asks for her help.

Ban Seok, Ja Young, and Se Gwon are reported to the headquarters for an investigation regarding the defect.

Ban Seok tries to find a way to survive the layoff at the company while Ja Young tries to execute it.

Ban Seok threatens to take down Ja Young and the company by blowing up his dishwasher at his house.

While Ja Young tries to stay afloat on the Product Planning Team, Se Gwon returns to the Product R and D team.

Se Gwon changes the Home Workout Mirror demo and puts Ban Seok and the rest of the team in distress.

The Home Workout Mirror contract falls through, and Se Gwon leaves the company with a few colleagues.

Ban Seok and Ja Young go after Hanmyeong E and C as their biggest client, but they need to convince Se Gwon.