Seo Woo-Yeon, daughter of Tewon's chairman, starts working at Tewon Electronics' marketing department determined to prove herself without relying on her father's influence. She vows to rise from the bottom and earn respect through her own efforts. Meanwhile, Cha Jae-Hwan, the marketing director, notices Woo-Yeon and seems impressed by her. However, tension arises when Woo-Yeon encounters an unexpected, strange demand from someone at work, leading her to question the office environment. The episode ends with Woo-Yeon facing an awkward confrontation that challenges her resolve to succeed on her own terms.
At Tewon Marketing, director Cha Jae-Hwan imposes a strict new office rule banning high heels, ordering employee Woo-Yeon to remove her shoes immediately and warning that any future offense will result in contract termination. Woo-Yeon resists, questioning his authority, but Jae-Hwan coldly insists she comply by throwing out her heels. Her coworker Lee Ju-Hye explains Jae-Hwan’s reputation as a tough and eccentric leader nicknamed 'sexy prick' for his harsh but strangely charismatic demeanor. The episode ends with Woo-Yeon frustrated and uncertain about how to navigate Jae-Hwan’s rigid demands moving forward.
Seo Woo-Yeon faces intense pressure on her first day at Tewon Electronics when Han Do-Jun, the strict Marketing Director, demands absolute obedience, even ordering employees to remove their shoes to maintain control. He suggests Woo-Yeon transfer to his team or leave with him to avoid difficulties. Later, Woo-Yeon catches Han Do-Jun training her intern, which he insists on doing himself despite her protests. He criticizes Woo-Yeon's slow pace and insists she finish her tasks, even if it means staying late, asserting his authority. Woo-Yeon is left wrestling with the harsh demands of her new workplace and Han Do-Jun's controlling attitude.
Intern Woo-Yeon faces skepticism from Director Jae-Hwan, who insists on training his own intern. Despite his warning not to wear heels, Woo-Yeon proves she can handle the work efficiently and even prepares extra overseas case files to support him. A sudden power outage causes a brief disruption, adding tension to the office atmosphere. Another woman belittles Woo-Yeon, urging her to stay unnoticed, but Woo-Yeon apologizes and insists on standing firm. The episode ends with Woo-Yeon trapped behind a locked door, calling for help, as Jae-Hwan and others urgently respond to her cries.
In this episode, Seo Woo-Yeon, the new intern, confronts Yun Ji-Su, who is married to Jae-Hwan. Woo-Yeon repeatedly apologizes, but Ji-Su responds harshly, warning her to stay out of sight and even threatens her. Tension escalates when Woo-Yeon accuses Ji-Su of ruining everything and enjoying her suffering, revealing a painful shared past. The episode ends with Woo-Yeon's desperate plea for forgiveness and Ji-Su's cold dismissal, setting up unresolved conflict between the two women connected through Jae-Hwan.
Woo-Yeon joins a new company where she unexpectedly reunites with Ji-Su, her former high school classmate and current team leader. Ji-Su questions Woo-Yeon’s sudden presence and their strained past surfaces when coworkers harshly judge Woo-Yeon as a failure from their shared history. Despite the cold reception, Woo-Yeon confronts Ji-Su, declaring she has changed and will no longer endure past humiliations. The episode ends with underlying tension between them unresolved, setting the stage for the challenge Woo-Yeon faces in proving herself while facing old grudges at work.
Woo-Yeon confronts Ji-Su, accusing her of causing their mother's death after Ji-Su mocks Woo-Yeon's lack of college education and implies she took shortcuts. Woo-Yeon's mother urgently asks Ji-Su if she has seen Woo-Yeon, worried since she lost contact last night. The confrontation escalates as Woo-Yeon recalls how their mother tragically died in a car accident while searching for her, implying Ji-Su’s role in the past tragedy. Ji-Su callously dismisses the blame, intensifying the conflict. The episode ends with Woo-Yeon grappling with her painful family history and Ji-Su’s harsh denial.
Seo Woo-Yeon, a new intern, is ordered to clean her team leader Yun Ji-Su’s desk, highlighting her subordinate position. Woo-Yeon reveals her deep resentment toward Ji-Su, blaming him for her mother's death, yet notices he seems to have moved on with life. Determined to gain control, Woo-Yeon claims she now holds the upper hand as long as Ji-Su stays at the company. She then decides to target Ji-Su's husband, signaling a new plan. The episode ends with Woo-Yeon instructing her secretary to conduct a thorough background check on Ji-Su, setting the stage for conflict.
At work, Yun Ji-Su and Woo-Yeon unexpectedly show up wearing the same outfit, sparking a tense interaction. Woo-Yeon suggests Ji-Su change to avoid making her own clothes look cheap, implying Ji-Su's outfit is a knockoff. Ji-Su challenges Woo-Yeon's accusation, asking to see the clothing tag to prove it. The confrontation escalates quickly, ending with Woo-Yeon screaming as something unexpected happens, followed by her casually dismissing the incident. The episode closes on this unresolved clash over appearance and status, leaving their rivalry deepening without resolution.
Woo-Yeon strategically provokes Ji-Su by pointing out how he manipulates Ji-Su's temper. Noticing Woo-Yeon has changed clothes, Ji-Su is asked for a favor—to button up the outfit since Ji-Su seemed annoyed by them wearing the same clothes. Woo-Yeon insists on Ji-Su's help because Ji-Su is nearby, leaving no one else to ask. This interaction subtly shifts their dynamic as Woo-Yeon maintains control while testing Ji-Su's patience, ending with Ji-Su faced with an unexpected request that challenges his composure.