To try and help Sark, Exetior gave him control of a dimesnion. He remained with Exetior, knowing he would be safe from Stich-Lite if he did. Sark was rescued by Exetior, but was heavily shaken and not wanting to go back. He thinks he's better than all the demons, especially Exetiorand want to be the top of everyone. Sark was captured by one of the highests, 'Stitch-Lite', and was subjected to various forms of torture from her thus leading to his insanity and decreasing mental stability. After they lost, Exetior and Negagen were given restrictions to a few selected planets and stripped of their titles. However, he appealed to the sharper’s pride and with that, Sark assisted Exetior in the war against the Highests alongside Pervision and Negagen. When Exetior attempted to recruit him, Sark was sceptical. Over the years, he rose up and gained control of other sharpers, leading them in an army, becoming one of the strongest sharpers.
However, these experiences would plant insecurities in his mind. From a young age he was beaten, humiliated but still never gave up. As a demon of sharpness, Sark grew up in a cutthroat “kill or be killed” environment.