土居 亜麻芽

Name: Amane Doi
Sex: Female
Age: 24
Birthday: August 17
Profession: Maid Cafe Maid
Likes: Quizzes, The Occult, Dance, Music, Voices, Right (Side)
Dislikes: Customers Who Sit There For 3 Hours With Just a Coffee, Silence, Left (Side)
Hobbies: Raising triplewart seadevils
Skills: Exploiting Vanity, Receiving Lavish Gifts

In AI: THE SOMNIUM FILES - nirvanA Initiative (Present):
She graduated from Sekiba High, but she still works at Sunfish Pocket as a Mermaid. Recently, she has had some health issues. She seems to know something about the Nirvana Initiative...

She is revealed to be the culprit of the present-day HB Case, having killed the original culprit, Tearer, as revenge for her father's death, and then blackmailed into aiding the Nirvana Initiative.