Natsuki is a quick learner and very studious. Her curiosity and hunger for knowledge constantly makes her pursue more and aim higher. She's always put much effort into her career, and she lives for her work. It's not unusual for her to overdo it. She's not someone who takes good care of herself, and she also tends to put others' needs before hers. However, that doesn't mean she does anything - she takes rules very seriously, she won't break them herself or even be lenient towards those who do.

Despite being able to communicate well at her job - during classes as well as with her superiors - she's very reserved and doesn't open up to others. She also rarely starts conversations herself, but most of the times she can keep them going fairly well. One of the reasons as to why she doesn't approach others is because she's actually a fragile woman. She does her best to seem tough and endure everything, but in reality she lacks confidence. Natsuki is particularly afraid of others finding out she's a werewolf, as many in her species don't have good reputation.