And Then the Girl Went Mad -Ending Tale on a Moonlit Night- is a song released by Akuno-P on August 17, 2014 in The Muzzle of Nemesis album. It portrays the slow descent into madness for Nemesis Sudou as she is left abandoned.
In the Millennium Tree Forest, a young girl waits for her mother to return as the light fades, wondering if she is still sane as she stays locked in the house. She hears twovoices whisper that she’s been abandoned, although she insists it’s not the same before coming to accept it herself. Trapped in the dark house, the girl slowly goes insane, forgetting her other feelings and becoming filled with wrath. As time goes on, the girl is eventually unable to sleep for fear of waking up alone and shouts for the door to be unlocked. Hearing only the twins’ resounding voices, the girl wonders in time if this was what her mother wanted.
Tale of Abandonment on a Moonlit Night shares the same themes of moonlight, insanity, and parental abandonment in And Then the Girl Went Mad -Ending Tale on a Moonlit Night-, as well as featuring the twins, Hänsel and Gretel, whom Nemesis hears reminding her of being abandoned.
The Last Revolver details Nemesis' life following And Then the Girl Went Mad -Ending Tale on a Moonlit Night-, showing her emotionless side as an assassin as well as her rediscovery of the happiness and sadness that she had forgotten.
The Muzzle of Nemesis is a continuation of Nemesis' life following And Then the Girl Went Mad -Ending Tale on a Moonlit Night-, alluding to the home that she had been imprisoned in and her absent mother.
Towards the climax of The Muzzle of Nemesis PV, the screen flashes phrases and images related to other songs, including "And Then the Girl Went Mad" and the "abandoned" lyrics sung by Hänsel and Gretel in the song.