Grace Field House

The Grace Field House (ハウス, Gureisu Fīrudo Hausu?) is a symmetrical flat-hexagonal complex used to raise children as livestock for the demons. It is unique, being one of the four known Premium Farms. It is entirely operated by female humans known as 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 HQ together. It is formed in a hexagonal shape.

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. The only known practical way to leave the complex is by using bridges that connect the HQ to the outside world.

Building
The Grace Field House is a European-styled home, standing three stories tall with blue roofs and light orange walls. Inside the house consists of a cafeteria, an infirmary, bedrooms, a library, the test room and Isabella's office.

Secret Room
A room hidden from the orphans, located within the adjacent walls of the orphans' bedrooms served as a headquarters for the caretaker, Isabella, to access.

Layout
Surrounding the house is a vast, grassy field which reached out to a small forest where the orphans would use to play a game of tag with, and a gate which serves as the entrance to the house, and a linkway to the Premium Farms' headquarters.

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. The shipping order of all the children is based on how high they score on the IQ test. 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, those who are below 4 years are playing in a nearby room, All the children except those who achieved a full score are given homeworks

Transmitters

 * 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]

Radar

 * 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.

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

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
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.

Headquarters

 * 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)

 * Isabella - Mama
 * Krone - Sister (Deceased)

Former Orphans

 * Emma (escaped)
 * Ray (escaped)
 * Gilda (escaped)
 * Don (escaped)
 * Anna (escaped)
 * Nat (escaped)
 * Thoma (escaped)
 * Lannion (escaped)
 * Dominic (escaped)
 * Jemima (escaped)
 * Mark (escaped)
 * Yvette (escaped)
 * Chris (escaped)
 * Alicia (escaped)
 * Rossi (escaped)