Konoe Tsurugi commands the Security department of the Hanaukyo estate. This 21-year-old typically wears a military uniform under her standard maid apron, reflecting her dual roles. Her severe, disciplined personality prioritizes duty and safety above all else. She takes her position as security chief and personal bodyguard to Taro Hanaukyo extremely seriously, leading to initial friction over his perceived lack of caution. While she adapts to become slightly less rigid over time, her protective nature remains core.

A notable soft spot for dogs provides a rare glimpse beyond her stern demeanor, visibly softening her; this affection eventually culminates in her adopting a puppy. Her name uses the archaic 'we' katakana character "ヱ" in "Konowe," though it is often romanized as Konoe.

Her background reveals a strong sense of justice and loyalty to the Hanaukyo household. She initially clashes with Taro regarding security protocols but gradually builds mutual respect. Her leadership involves overseeing complex security operations, including high-tech surveillance and coordinated threat responses, once returning to the mansion authoritatively accompanied by a squadron of helicopters.

Yashima Sanae serves as her deeply loyal adjutant, often harboring unrequited romantic feelings. Konoe primarily views Yashima as a pupil and subordinate, despite acknowledging her combat skills. Their dynamic includes moments where Yashima's daydreams about Konoe create awkward situations, though Konoe stays focused on professional matters.

In the OVAs, her duties expand to include training Taro directly. During one session, his struggle to focus due to her appearance highlights occasional tension between her professionalism and others' perceptions. Her commitment persists even in non-security scenarios, like leading her department in a budget-determining softball tournament. Her interactions sometimes involve exaggerated expressions of anger, depicted visually as a "Demon Head" when frustrated.