Lullaby

ゼレフ書の悪魔

Lullaby possesses two forms, resulting in two distinct appearances: its initial, default Flute Form and its Etherious Form. In its flute form, it is incapable of speaking, moving, or taking action, measuring nearly 50 centimeters in length. One end features a skull with three eyes and an oval-like cutout in the brow, while the other end has root-like cutouts. Upon transforming into its Etherious form, the flute becomes an extremely tall beast with three eyes, two legs, two arms, and one head, its body marked by numerous cutouts. Originally, the flute served merely as a tool for "murder by curse," meaning it cursed a target to cause their death. After falling into the hands of Dark Mage Zeref, he further developed it into a magical flute known as Mass Murder Curse Magic, which is capable of placing a death curse on everyone who hears its melody, with the exception of the Caster.