Season 4[]
Most of Uto's actions are done offscreen. Uto, along with Draneeve were sent to Dicathen to infiltrate and gather information. During that time, Uto was tasked with corrupting and mutating the mana beasts of the Beast Glades. His activity did not go unnoticed however as the other mana beasts began to act abnormally due to the activity of the corrupt mana beasts. Because of this, Lance Alea Triscan was sent to investigate the abnormal behavior of the Titanic Bloodworms by excavating the recent activity of the A-Class dungeon Hell's Jaw. After she and her troops managed to defeat and slay a Hades Serpent that Uto corrupted, the militia found a hidden tunnel underneath a thin layer of earth. After crossing the tunnel, they arrived at the cavern of another dungeon called the Widow’s Crypt, where Uto was waiting for them.
Uto presented Alea with two choices: dismember all of her troops, one by one, in front of him, and the Vritra will let her walk out unharmed or try and fight him. Alea chose the latter and the fight broke out. The Vritra didn't even break a sweat from fighting his enemy as he uses his magic, Black Metal, to instantaneously conjure metal spikes, blades, and any sort of weapons from the ground and himself. The fight was over too quickly, half of Alea's men were dead in the first wave of attacks Uto unleashed with a simple flick of his wrist. Alea herself tried desperately to fight off the enemy with her plant magic, and was even able to chip at the Vritra’s horn.
Enraged that a lesser being was able to scratch him, Uto immediately impaled Alea, shattering her core. He then removed her right arm and both of her legs, and cruelly sealed the wounds by burning them. As further punishment, the savage Vritra gouged her eyes out so that she could here the dying screams of her soldiers. The ones that were still alive attacked him, he didn't even bother to dodge as plates of black metal instantaneously materialized and blocked whatever attack that managed to get near him. Uto left Alea to bleed out, mocking her over her efforts to stop the upcoming war.
Season 6[]
He was defeated by Seris Vritra during his fight with Arthur at Ashber Town,[1] following which she tells Arthur to claim that he captured Uto. Later on, Uto is interrogated. However, he meets his end when the curse of the Vritra activates, or so it is believed. Soon after that, it is revealed that the Vritra had infiltrated the castle with the help of Alduin Eralith to silence him.[2]