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This article is about the Anime version of the Grace Field House. For alternate pages referred to by this name, please click any of the icons above.

The Grace Field House (GF (グレイス=フィールド) ハウス, Gureisu Fīrudo Hausu?) is a symmetrical flat-hexagonal complex used to raise children as livestock for the demons.[1] It is unique, being one of the four known Premium Farms. It is operated by a female human known as Grandma as well as her underlings known as Sisters and Mamas, who also double as caretakers for said children.

It consisted of five Plantation Farms, a headquarters and a central area that connects the plantations and Headquarters together. It is formed in a hexagonal shape.[2]

The entire complex is surrounded by walls. Beyond the walls lies a deep cliff. Both act as security measures to prevent the children inside from escaping. [3] The only known practical way to leave the complex is by using bridges that connect the Headquarters to the outside world.[4]



The Grace Field House is a European-styled home, standing three stories tall with blue roofs and light orange walls. Asides from basic electricity, plumbing, the radio the mother uses to contact headquarters, and the high tech devices the children take their tests on, Grace Field House is void of modern technology. There are no TVs or electronic toys, and what little technology they do have is said to be older models. Laundry is done outside in a tub with a washboard and then hung on a clothesline near the house to dry. There is a dormant old well near the house, likely used for getting water before plumbing was invented. Inside the house consists of a cafeteria, a test room/classroom, several bathrooms, an infirmary, a library, several storage rooms, the mother's bedroom which connects to her office, three children's bedrooms each with 10-11 beds, and extra (usually vacant) bedrooms for sisters.

Secret room

A room hidden from the orphans, located within the adjacent walls of the orphans' bedrooms served as a headquarters for the mother to access. The room is also used to hide the toys and belongings that former orphans took with them when they were shipped out.


Located in the middle of the Demon Forest in the demon world, Grace Field is a large hexagonal complex divided into five plantation farms each containing a single house, with the sixth area being a building known as headquarters. The area surrounding the perimeter of the complex is a large deep cliff. Surrounding each of the five plantations is a large concrete wall and a short fence further inside. A vast, grassy field surrounds each house which reaches out to a small forest where the children play. A gate which serves as the entrance to each plantation from headquarters is located on the center north point of each house. There is only one bridge over the cliff leading in and out of Grace Field, which is located at headquarters and a gate which serves as the entrance to the house, and a linkway to the Premium Farms' headquarters.[5][6]


Litany Tests

These tests are given daily in order to polish the brains of the children. The orphans in Grace Field have to sit through daily tests, which will make them more academically/mentally inclined. The highest score an orphan can get is 300.[7] The shipping order of all the children is based on how high they score on the IQ test.[8] The tests in Grace Field House focus on information analysis. Problems are distributed according to age group. Taking of tests starts at 4 years old.


Main article: Transmitters

Transmitters are microscopic crawlers that are stapled into the ears of all the orphans in the Grace Field House. Their true form is unknown because they are not externally visible. The use of these transmitters help a caretaker to track down the whereabouts of an orphan via a radar.

A disadvantage of a transmitter is that it would be useless if the host is near the gate or the wall which surrounds an orphanage, as it would eventually lose its signal.

The transmitter will also be useless if the device – invented by Ray – is applied onto the ear of an orphan which contains the transmitter, as the device could cripple the transmitters and render them useless. It was crafted by Ray using parts of an instant camera, an old video game console, an iPod and other gifts which he received from Isabella for being obedient to her as her spy.[citation needed]


Main article: Radar

The radar is a small, technological device used by the caretakers in the Premium Farms. The radar can locate orphans who have the transmitters implemented into their body, specifically the back of their ears for the orphans in Grace Field. The radars are designed to be light and durable for the caretakers to carry around. They take the appearance of pocket watches.


Children are shipped out of Grace Field between the ages of 6 and 12. Age also determines the rank of their quality, with 6 being the lowest, and the normal quality and 12 being the highest.

The test scores determine the shipment date orders. After the children reach the age of 6, the lowest scores will be shipped out first. Those who have full scores will be shipped out no matter what once they turn 12.

Test scores determine the shipment date orders because of the size of their brains. The more developed brain, the better, thus qualifying as the highest rank.

They are shipped out at night on the day of their 12th birthday or when their shipment date has been decided.

Appointing Girls as Caretakers

Girls who are 12 years old and clear a set of successful requirements are given two options: One is to be killed and the other is working as a caretaker.

One must have satisfactory grades and a recommendation from their own Mama in order to be appointed as a caretaker.


Microchips are embedded into the young girls who are willing to become caretakers. They are embedded in their hearts and are programmed to send an electric shock to their hearts if they take a step outside of their grounds. They are also programmed to send an alert to the higher-ups if the heart stops on its own for varying reasons.

Employees & Orphans


  • Isabella - current Grandmother of the Grace Field House
  • William Minerva - Author of all the books in Plant 3 (Formerly)
  • Numerous unnamed employees and subordinates

Plantation 3 (Formerly)

Former Orphans

Relocated Orphans

Unknown plantation