The Kusha Family. Jha Kusha, Nia Kusha, and Their Daughters Jea, Fio, Horia, and Reia Kusha. The book of Delicacies, a book filled with knowledge on what is edible and not and how to make such edible objects become delicious. It is a book that began right after the beginning of the earth, the time when the ancestors became alive, it started as a written page filled with notes about what is edible and not, which are healthy or dangerous, which are delicacies or rare, and it began the following thousands of words to be imprinted before this book.
For 308 years the book was being written and worked on by the Kusha Family, the ancestors found delicacies with flavours even gods can't believe, the progressial ecosystems of the earth created by the human god made an evolutionary factor into the world that it encompasses.
The evolutionary progression of food in the world was in line with the evolution of the animal kingdom, the progression of both ecosystems and living object types became a breeding ground for different compounds, creatures, evolution driven type ecosystems, and biomes that was created because of the different and specific objects of each ecosystem.
These places called ecosystems were home to different and only specific to the ecosystem objects plants, fruits, trees, creatures, and the different and specific state the area around them was to be able to survive. This lead to a knowledge surge into the different places and areas these ecosystems originated from.
Jha Kusha a man with patience of a god, he is a patient man with all the time in the world, a man that waits for the moments that matter. He was the man that began the search for the most delicious safe for eating food out in the earth, this began when he tastes the magic of bread and potatoes with condiments, the deliciousness of the food made him search for an even more delicious delicacies. Through his life he looked around for food, foraging and foraging, until he finds something. He writes things about this object and information about it, and of course he tests if it is delicious, consumable, and the rarity of such object, each of the knowledge written by Jha Kusha is carefully tested and tasted for a minimal of a week or a lot of time if needed be. This is why the knowledge of the book is important to the advancement and development of humanity.
Nia Kusha a cook with skills that can satisfy the hunger of gods, her proficiency in cooking was carefully blended with the knowledge of gods about the preparation of food from its raw and original state into transforming the food into a new and more delicious product, a talent that surpasses even some gods, and talent that surpasses even the current knowledge of humanity about this field. Sadly this is limited to what the current knowledge is in this field on humanity, she was given a kind of percussion as to not destroy the flow of the advancement of humanity, she was limited this her talent was only able to live within the confines of her skills being a part of humanity.
Jea Kusha and Fio Kusha they are twins that destroy their opponents with lethality and speed, they are very strong individuals, they move from ecosystem to ecosystem finding and hunting different animals around each ecosystem, they are responsible for searching, locating, testing, tasting, and researching about the food chain in the different ecosystems around the domain of humanity, they spend months in one ecosystem to live in it and thrive in it, they are the ones that hunt, they are the danger to these ecosystems, they are what keeps the balance between ecosystems acting as a mediator towards balance. Due to disagreements with Jha they decided to deviate from the standard way of recording and the aimed contents of the Book of Delicacies, when they began tracking down knowledge and information the book of Delicacies was starting to become an almanac for all Ecosystemal Knowledge of Earth.
Horia Kusha and Reia Kusha they are individuals that still agree with the ways of Jha but hate being tied to specific things as it makes the two of them bored, they are only focused on looking for strong ceatures to fight looking for a death bed worthy of a strong warrior of their caliber. They didn't follow the normality of edibility, between the Kusha's they wanted to be the ones to slay the most dangerous of what the ecosystems offer, they spend just merely days to hunt what they sought for, dragons, drakes, spirits, gorgons, serpents, and gigantic monsters that even the Head of The Arcea Family would be struggling against alone, The sisters use surprise attack tactics and piecing into the vital points of the monsters. The Grave Art, a style of fighting that makes the opponents become weak as time passes was a Fighting Art that was born from the skirmishes that the two of them are encountering, it targets vital organs and rupture blood vessels to weakken the oponent as much as possible, the art has 12 Specializations and these specializations bleed the opponents and even immediately making the enemies die as fast as possible.
As time passed the book for delicacies became vivid as to what it really wants to become, the only time mentioning the name Book of Delicacies was when the Recillia Family asked the Kusha Family as to what they have been doing being absent from some of the festivities in the settlement when Barbatos was still creating a new part of humanity. This knowledge was tucked away for over almost half a millennia, hiding in plain sight and was housing the knowledge that would quell the fear of humanity for living things and places beyond the unknown, this book was somewhat a key but a key that was locked within it self.
The Book of Delicacies was at first simple to create, its contents were found only at the basin of the mountains where the human settlement was located. But as time progressed and the book got more and more information inside it the contents of which each of the materials are located at were difficult to traverse through and is usually in an ecosystem filled with dangerous living things, from murderous plants, to gigantic beasts, to sometimes calamities or undead corrupted beings, the danger that was shown to humanity was the reason why there was a drive to have this type of information recorded. This slowed the progression of the book but brought new and difficult to find information into it's pages without deaths or losing someone. Slowly but surely the book of Delicacies turned in The Book of All Existence. Even the Kusha didnt think of it becoming something of an almanac of all existing danger and consumables of the world.
Probably one of the most difficult to obtain entry was the contents of Category|Arch Demon, Danger Level:Threat to Humanity, Secondary Classification:Calamity, Existence:1, Book Number 72, Chapter 227 of The Demon Catalogue, Page 556, Supreme Demon Calamitas:Creas. It was at this point in time that the Kusha was on a roll of information gathering into the depths of the earth having recorded dragons, ecosystems, beasts, calamities, and delicacies. Horia Kusha and Reia Kusha was on their way to the Central heart of Ecosystem 113:The Graveyard a place where corruption was alive and kicking, they were looking for a fight and found one that was as difficult as it could ever be, they have found in the heart of the ecosystem 113 a Demon Calamity with a species count with about one of it's existence, which means that it was honing strength from the darkness with no competition. They were fearful at first but decided to run in with the 11 Specialization of The Art of Horia Kusha and Reia Kusha head on, and so fight they go and begin, it started off good at first they landed a few hits to the Calamity, it was weakened after just 16 Hours of pummeling it with the 11 Specializations but after all this time it was feeling a bit off as to why the calamity wouldn't die and crumble to dust, as its wounds reach a vital point the darkness of the corrupted center began feeding the life force of everything around the ecosystem, plants, animals, the sky and even the air was becoming more and more unhabitable, the unbearable pain showed a sign that they should finish the calamity immediately, as more and more power channels towards the calamity Horia and Reia began using the 4th Art:Ghost Palm a move that combines speed hitting vital parts and breaking the skin of it's oponent, 6th Art:Virna Nam a barrage of power and lethal kicks to vital parts and deal damage from the outside and inflict painful damage to the inside ignoring the existence of the outside in the attacked vital points, and 11th Art: Gleaming Phantom a move that combines the power and speed of compression of air and turns air into a sphere of dangerous properties, but try as they may even with broken arms from the toll of using such an unmastered and difficult move it became clear that they would die then and there in that very moment, but as the unhabitability of the ecosystem began seeping closer and closer into them they had the sense to create one last specialization art, The 12th Art:Ground Zero, it was an art of such a massive scale, the 12th Art left them with broken ribs, arms, and knee caps, even corrupted lungs and stomachs they produced a gigantic and toxic cloud of smoke, it was an awakening that spelled disaster for them but they along with the ecosystem was just temporarily disabled by the toll of such events.
Horia Kusha and Reia Kusha escaped unscathed but the calamity was later renamed into Supreme Demon Calamitas:Creas which when they returned after three months of rest, the calamity turned into an Arch Demon, though it's central part of the ecosystem it resides in became it's home as it slumbers away through time and through the existence and evolution of humanity.
The Ecosystem 113: The Graveyard became a testing ground for the two that they named their badly named art specialization as The 12 Grave Arts, it was a name that came up after realizing that the goal of the art is to put it's oponent to the grave where it dies. They later honed the 11th and 12th Arts to the point where they can use it anytime and anywhere. The Duo of Horia Kusha and Reia Kusha a powerful and unrivaled Duo Indeed.
After the Book of Delicacies was found humans at the time called it not the book of Delicacies but The Book of All Existence, the book held information of so many unknown things to the point where some even question each entry and it's existence's, but as time passed humanity also gathered their own information and this the book was never endingly getting more and more expanded by humanity after the ancestors of the Kusha.