One key feature could be a strong female protagonist who is the secretary. Maybe she is in a difficult situation in her workplace or personal life that forces her to escape. Another might be the settings, perhaps it's set in a big corporate world full of power struggles.
Women who can relate to the struggles of a working woman might be interested. They could see themselves in the secretary's situation and be inspired by her journey of escape.
One popular 'secretary escape novel' could be 'The Secretary's Great Escape'. In such novels, the plot often revolves around a secretary facing various challenges in a work or personal situation and finding ways to break free. Maybe it's about escaping from a toxic work environment or a difficult relationship within the workplace.
The suspense makes it interesting. For example, in a 'secretary escape novel', we wonder how the secretary will get away from the difficult situation, whether it's a controlling boss or a stifling office culture.
Secretary Kim manga is popular for several reasons. Firstly, the art style is visually appealing. Secondly, the storylines are unique and full of surprises. Also, the character development is deep and makes you care about the characters.