Tae Gu is a skilled and strong-willed detective who stands out in the violent crimes unit. Though seemingly rebellious, she is sharp, rational, and observant, with a commanding presence when needed. Despite frequent clashes with Ha Yeong, she secretly trusts his strength. Grounded amidst the department's chaos, Tae Gu's clarity allows her to lead effectively.
Her rise to team leader, despite enduring a conservative society and organizational pressures, remains impressive. Tae Gu’s refusal to cut her long hair is a personal tribute to victims of a past case.
Initially dismissing the Criminal Behavioral Analysis Team’s work as trivial, she grows to appreciate their value after seeing their sincere efforts and the insights their profiling offers. Her impulsive nature, driven by her strong sense of justice, leads to actions like physically confronting Cho Hyeon Gil during an interrogation.
