Existence Eraser is an extreme death metal eroguro-kei band formed by former amorpha rhythm guitarist, Jason "Shura" Harlock. After Existence Eraser's formation, as is with the trend of bands in the corresponding genre, Jason took on a new moniker, known by fans as "Zetsu". Existence Eraser originally started out as a mere side project, a solo project which harlock intended to be limited to internet post relases only, but through extended support and personal reasons, he left amorpha to launch Existence Eraser officially. Existence Eraser has since gathered a following and a fanbase as large as amorpha's own. There is also a grand amount of controversy surrounding the band, as it is widely believed that Existence Eraser was formed due to Harlock being incapable of showcasing his true music