Lucy

Cathy's self-proclaimed childhood friend.

She's always been infatuated with Cathy, considering her the most beautiful and righteous person she's ever met. During their time together in a prestigious all-girls' school - which she attended despite coming from a lower middle-class family, unlike most of her fellow students - she was initially one of many girls idolizing her, but was ultimately the only one left by her side following the rumors caused by the murder of Cathy's parents.

Her strong desire to stand by Cathy's side continued well into her adulthood, with both of them eventually working at the same prison. Despite being thoroughly devoted to her job and demonstrating a very serious demeanor, she often tends to experience fits of panic and anxiety, worrying whether efforts to aid and serve her object of affection - such as carrying out sentences and punishing those who speak out against her - are enough to please Cathy or even get noticed by her in the first place.