The once known "Evil of All Evils". It was once the Final Form of Labyrinth before the Great Purification, and with Malum as herself, she was indeed the one Evil that even the strongest have feared for generations.

 

Malum was an absolute god of all Evils that none could ever match, thus she was unstoppable in almost every way... All except for one source, that made her fall come true. With Malum destroyed by Reimu/Tashki, Tashki has sealed both the Ehrall and Malum's powers away amongs the Eternity, keeping them fully neutralized and at rest to hopefully be of no more use. Thus Labyrinth/Malum was eradicated by Reimu/Tashki's Fantasy Nature within the Eternity, in order to prevent another Great Incident.

Ever since then, it was believed Malum would cease to exist. But rumors and legends speak of a one possible legend...the Dark Legend that would alter even the fabrics of all Existence and Non-existence. The only bearers of such knowledge, are the Souls of Evil in which stand today against the Great Four.

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