Thernz, also known as the Grand Medicinal Progenitor Sage is a barely-legal but skilled strategist and herbalist that works under the employ of The Chapel. He holds the distinction of being one of the few people in The Chapel to have crossed the Heavenly and Extremely Huge Gate of the Propping Pillar that essentially blocks East Asia from Europe. Despite that, he frequents The Dungeon, usually in goblin cosplay with Nagumo. He is very antagonistic when hearing about Cox.
The Grand Medicinal Progenitor Sage came from the distant mountain range east of the pagan realm of Fergana and the Labyrinthine Kingdom of Goblins, deep within the trenches of the oriental dominion, The Land of Dragons, known for its fine silks and tea. It is rumored that he was the descendant of Poisonous Wu, The ‘Great Boxer of Xuan Wu.’ Poisonous Wu had been a skilled knight-errand in the untamed northern region where corruption ran rampant. He attracted the notice of Xuan Wu, the Black Warrior of the North signified as a tortoise, who bestowed him the title of Duke of Wuhan.
In his later life, the Great Boxer lived a luxurious life in his suite but was fearful of his barren attempts to conceive a child. He crossed into the barren deserts of Xinjiang to seek the aid of the Amorous Mystic of the Sun, Uighur. The Amorous Mystic would confer him with three jewels that promised him reproductive prosperity. However, they failed to produce results over a decade that otherwise saw great famines, earthquakes, and other disasters.
Xuan Wu would personally descend from the Heavens and scold Duke Wu for being skeptical his power. The great tortoise bereft himself of his most beautiful concubine, Hong Thernzlan, and allowed Duke Wu to beget the Great Progenitor Sage. In failing to recognize Xuan Wu’s benevolence however, Xuan Wu sentenced Poisonous Wu to one hundred days of water torture and not a word from Wu has come since. Xuan Wu’s son would also mysteriously disappear the day of, perhaps in rebellion of Xuan Wu’s cruelty despite being a meager week old.
Thernz only remembers that most of his youth at a secluded Taoist Temple amidst the Tai Shan, the East Great Mountain. But records link Thernz’s disappearance and the discovery of a young child who was adopted into the temple a week later. How such a youthful child survived and traveled up the great mountains can still stir gossip and conversation throughout the Han Empire. Some even say that Thernz’s birth was the transferring of Poisonous Wu to a new body as a form of renewal and atone for his grave errors in the last life. People suggest that the man's ravenous hunger for turtle is evidence of his long-standing grudge against Xuan Wu despite reincarnation.
At the temple, Thernz, very prodigious and able to learn a variety of philosophically different and even clashing styles quickly, was trained in three styles of martial arts: the Tai Shan Temple Fist of Beauties, the Five Venoms Lizard Style, and Soft Palm of the Golden Peak, a martial art passed down from Zhou Zhiruo. Aware of his supposed lineage from Poisonous Wu, the monks believed that the boy could not be kept else Xuan Wu would curse them for housing the son of ridiculed Poisonous Wu. Age 14, Thernz was tossed out the temple by luring him out with a cup of guilinggao outside the temple, then shutting the gates behind him while the monks howled, “Thernz, please go.”
Thernz’s heart was filled with a bitter and solemn loneliness. He traveled across the Jianghu to adopt new martial art skills to replace the ones taught by his old masters. He would meet Ouyang Feng and learn many poisonous and even evil martial arts, like the Toad Skill, Divine Serpent Staff Skill, and Bone-penetrating Dianxue Skill. Corrupted by the malicious martial arts, Thernz tried to plague the countryside. However, Thernz would meet upon the gaze of a Tibetan songstress named Alan at a tavern. When he came to meet her, he saw her with a cup of guilinggao and realized his wrongs.
While Thernz and Alan never spoke to each other, he felt as though their hearts communicated and he felt her heart telling him to abandon his misdeeds and to seek the "Man with the Apple-Crushing Fist". He would take his knowledge of poisons and convert it into medical knowledge to save the ailing, often creating pancreas for them, albeit imperfect ones.
To atone for his sins, Thernz thought to begin hunting evil beings that plagued his homeland. Of these, he most prominently hunted Jiang Shi. For a while, he was known as Phantom Fighter Thernz, due to fighting Jiang Shi not only with the traditional sealing methods, but with the martial arts that he had learned. During this time, he also met Kenchi, the master who would improve his Jiang Shi fighting skills, and learned from him that Fu Manchu is the perpetrator behind the Jiang Shi plague. Together, they went on an arduous quest, hunting many Jiang Shi and finally, defeating Fu Manchu himself. Feeling his work complete in this area, Thernz bid farewell to Kenchi and went on a new journey, to improve his skills and to gather wisdom.
While going through the Xuefeng mountains, Thernz saw an old man training there, clawing the sides of the mountain at a speed faster than the eye could perceive, and pulling out large chunks of rock each time. Impressed by his skill, Thernz asked if he could learn the old man's style. The old man introduced himself as the Dragon Master, and told him that this style will only be taught to members of the Dragon Clan, a large family of martial artists. However, the Dragon Master perceived Thernz's amazing aura, brimming with love, and told him that he could join the Dragon Clan, if he proved his worthiness in combat. For forty days and forty nights, straight and without any breaks, Thernz fought against every member of the Dragon Clan. He won most matches, but lost against the Dragon Master, though Thernz gave him a spectacular fight. Despite Thernz's defeat, The Dragon Master deemed Thernz worthy, and Thernz learned the secret Double Fist of the Dragon style, which granted him incredible strength and fortitude. In his many years with the Dragon Clan, Thernz also adopted the Code of the Dragon, and became incredibly wise. Though later, Thernz felt that he needed to move on once more. The Dragon Master understood this decision, and Thernz departed the Dragon Dojo.
Thernz sought to cleanse himself even further and traveled even more west, flipping above vast tracts of land, climbing enormous mountains in only seconds and leaping over chasms, finally reaching The Dungeon. He was in the presence of The Successor and Diplo for three years but they hardly noticed them. After they left The Dungeon and formed The Chapel, Thernz missed them dearly and went there as well. No one noticed him until he bumped into Nightmare's biceps and complained that they weren't Alan.
Thernz x himself is currently the second most canon relationship, just under Jesus x Satan. Thernz is incredibly popular. No creature known to man or goblin feels any animosity towards him, except for the especially deranged ones. It is said that even in combat, his opponents ' eyes are filled with tears and their minds with regret when facing Thernz. He is close friends with Gabriel Goblin and his spider and records their adventures.