Tgurneu is one of the three Kyouma leaders alongside Cargikk and Dozzu. He has 40% of the kyouma under his direct control, including powerful "special tools" who evolved to develop specific powers to their fullest under his order. Among other things he did, he was responsible for what happened to Adlets village eight years earlier and also seems to be the one who sent the unidentified fake hero among the heroes. It was under his order that Fremy was born, and she started hunting powerful warriors and Saints; it was also under his order that she was betrayed after her failure against Chamo. Tgurneu is cunning, a master at lying and controlling people, and understands human emotions better than anyone else. He has been studying them for hundreds of years until he could predict their moves based on the emotions he created in them. His real identity and form are full of lies and deception, making it difficult to determine if he is serious or just playing around at times. As the three leaders do not have friendly relations, Tgurneu does not cooperate with the other two leaders and would not hesitate to kill them if given the chance.
His true form is that of a fig kyouma which can be ingested by other kyouma.