Oh Soo Ah
Head of the strategic planning team in Jangga Group; Sae Ro Yi's former classmate and first love. Abandoned by her mother, Soo Ah grew up in an orphanage and became close with Sae Ro Yi's father Sung Yeol. She becomes acquainted with Sae Ro Yi, who has a crush on her. After Sung Yeol's death, she receives a scholarship offer from Jangga Group and soon becomes an employee in the company. Though passionate about her work, she is torn between her allegiance to Jangga and her love for Sae Ro Yi. Due to their conflicts of interests, the two would hold a long term emotional relationship, but never a true romantic one. Eventually, Soo Ah realizes Sae Ro Yi's feelings have changed and the two remain as friends. She later became a whistle blower to the authorities on the crimes that Jangga have committed in the past during her time in the company and later starts her own restaurant.