Riko, Reg, Nanachi, and Faputa

Riko's appearance/abilities

Riko is a girl approximately 10-13 years old. She is quite small, has long blonde hair, emerald eyes, wears glasses, and has a slender build—after all, she's just a minor. She wears a miner's or climber's suit with a lamp on her helmet and carries a White Whistle. With this instrument, she can enhance Reg's abilities. She is the group's cook, having more knowledge than anyone else in the group in this area. She is a curious girl and is in the Abyss for one reason: she is looking for her mother, who told her she would be waiting for her at the bottom of the Abyss itself. She is a rather friendly and curious girl, although she is also cautious and loves exploring the depths. When she blows her White Whistle, which Prushka granted her upon her death, Reg's abilities are incredibly enhanced; his speed and strength increase, as does the reach of his hands and the power of his incinerator. His skin darkens, and his metal parts, such as his boots, gloves, and helmet, turn white.

Reg's appearance/abilities

Reg is one of the biggest mysteries in this anime, as he has the appearance of a young child, similar to Riko, but he is a machine. His arms and legs can extend more than 40 meters, and can detach from Reg's body via a thick, strong cable. On the palms of Reg's hands, he has a laser cannon that disintegrates anything that enters its blast radius; this is known as the "incinerator." Reg has dark skin, yellow eyes, short brown hair, and a metal collar attached to a red cape. Reg is the group's guardian; as a machine, he usually takes care of guarding them every night, sleeping but using his extended arms as touch sensors. Reg is quite strong, fast, and resilient. When Riko uses the white whistle, he becomes much stronger and faster; his abilities are enhanced in every aspect. However, he is sometimes fearful and tends to overthink things; he is very cautious and likes to prevent problems, but he is also friendly with his companions and friends.

Nanachi's Abilities/Appearance

Nanachi is a kind of rabbit with light brown fur, his eyes are golden and he has long ears of the same light color, he has more developed senses not to mention that he is quite fast and intelligent, his role in the group would be the doctor, he is the one in charge of treating the wounds of the entire group in case they get hurt. His personality is carefree and indifferent, in dangerous situations he acts the same way although deep down he is terrified. He is quite sarcastic and rude but kind.

Faputa's Personality/Appearance

Faputa appears as a small girl, but don't let that fool you, for she is Princess Naherete, the Physical Representation of Valor. Her face, skin, body, and limbs are ebony. Her hair, hips, hands, and legs are covered in fluffy white fur. She has rabbit-like ears, but larger, and keeps them down at all times, not to mention her five long, fluffy tails with the same fur as her hair and ears. She has four arms, covered in fur from the elbows to the hands, which have no fingers; instead, she has small but sharp crimson claws. Under the fur, she has a much longer and sharper claw that she can extend at will. On her forehead, she has three small, rhombus-shaped, crimson horns. Her eyes are yellowish, and she has an aroma similar to that of the sun... She is quite competitive and aggressive.

First Layer: Edge of the Abyss Height 0-1350

Description: It is the border between the Abyss and the city of Orth. There are not many relics or important beings there, although predators from the other layers often come to forage. The vegetation is the same as that of the island and there are not many geographical differences between points. All whistles can explore this area safely.

Second Layer: Forest of Temptation height 1350-2500

Description: This is the layer where the environment becomes a dangerous zone. Animals become more aggressive and territorial, although it maintains the same relief as the previous layer. At approximately 2000 meters, the forest turns upside down and becomes what they call "the inverted forest." In this layer, the environment becomes cold and unstable and aerial predators appear. Only experienced diggers can come to this layer. In this area, the Observation Camp was created for those diggers who need a break. Red whistlers are not allowed to enter this layer. If a red whistler manages to get to the second layer, it is considered suicide and the search parties are stopped.

Third Layer: The Great Fault Height 2500-7000

Description: The third layer is a long, vertical, tubular descent, which makes it an extremely difficult area to explore. Within its walls, a system of interlocking caves serves as a habitat for many species and a path for those diggers who dare to descend the layer. Air currents are very strong here, which facilitates aerial life forms, such as the Scarlet Jaws.

Fourth Layer: Giants' Cups, Height 7000-12000

Description: The fourth layer is a strange, humid jungle with large vines that intertwine to form gigantic concave disks that capture water from the air, a feature that gives it its name, the "Giants' Chalice." At 9,000 meters is the famous Garden of the Flowers of Endurance, an area filled with Eternal Fortunes, the signature flower of the Abyss. A truly beautiful sight, although the danger from the beasts that inhabit here is high.

Fifth Layer:Sea Of Corpses Height 12000-13000

Description: The thinnest layer of the Abyss vertically, at only 1000 meters deep, but the widest horizontally, probably around 10 times wider than the city of Orth. It consists mostly of a vast sea, filled with monsters with some crystallized sections, held up by a thick layer of dense mud. This is the last layer of the Abyss where it is possible to endure the curse and return alive. An ancient ritual site, protected by the Idofront, that was turned into a laboratory for Bondrewd and his crews acts as a gateway to the sixth layer, the point of no return.

Sixth Layer: The Capital of No Return Height 13000-15000

Description: This is the layer from which it is no longer possible to return as a human. If one tries to ascend into this layer, they will be deformed beyond recognition in a process of inconceivable pain, becoming a messy pile of flesh with only basic instincts and destined to be killed by their team or to live abandoned in the abyss until their demise. In addition to the loss of humanity, in some cases, the ascender may even succumb to death directly from the curse, which, from the aforementioned, seems to be the most merciful outcome. Hence the name, "The Capital of No Return." In Orth, there is a rumor of a Golden City at the bottom of the abyss, which originated in the Sixth Layer, where the ruins of a majestic city slumber undisturbed. It is not uncommon to encounter creatures of an unreasonable level of danger here. In one isolated area, an entire village inhabited by Narehate called Ilblu was formed.