They originally played a rawer, more straightforward style of black metal.
Although Keisuke loved black metal, he believed that a lot of bands, such as Dark Funeral and Satyricon played it much better than them.
Though Ayumi initially started on rhythm guitars, she soon found herself adding depth and a new dimension behind keyboards, where she had 10 years experience.
They released their debut entitled Under the Dark Mystic Sky from the label in 1998, which was the same title as their 2nd promo tape.
In past days before the release of their debut, Damien of Ritual Carnage played for Tyrant as the rhythm guitarist.