She puts on a cool, beauteous, and villainous facade but often breaks character, revealing her true caring and meticulous nature when teased or pressured. Behind her mischievous personality, Aru is a shy artist, striving for perfection. She has a thirst for knowledge and constantly seeks to expand her understanding of the criminal underworld, enhancing her problem-solving abilities. While not exceptionally intelligent, her unwavering determination and focus on her goals make up for it.

Aru persists relentlessly until her tasks are thoroughly accomplished, though she can also be goofy and prone to panicking when things don't go according to plan. 

Voice Match Ref

Zensei Script note:

Aru will scream in fear once.