Megicula

Some time in the past, members of the Agrippa Family entered into a pact concerning Megicula.[8]

After Astaroth's mysterious disappearance from the underworld, Megicula takes over the other devil's position in the Tree of Qliphoth and the underworld.[

Once Vanica Zogratis becomes Megicula's host, she wants to test her new power and seeks out Acier Silva. After Acier lethally wounds Vanica, Megicula curses Acier and advises Vanica to retreat.[9][10] Once Acier succumbs to the curse, Megicula physically manifests in Vanica's body.[11]

Years later, Megicula, within Vanica, enters the Heart Kingdom, fights the Spirit Guardians, and curses Princess Lolopechka. The devil then returns to the Spade Kingdom.[12] The Princess and Undine recruit Asta and some other Magic Knights to help save her and defeat the devil.[6][13]

Six months later, Megicula and Vanica return to the Heart Kingdom in order to kill Lolopechka.[14][15] When Vanica draws on 70% of Megicula's power during her fight with Lolopechka, Megicula's Decaying World spell activates, so when Secre Swallowtail manages to seal Vanica, the arrays are weakened, allowing the devil to break them easily. Megicula takes partial control of Vanica's body, binds Secre, and destroys Lolopechka's Ludic Sanctuary, injuring Noelle Silva, Secre, and Lolopechka and cursing Undine. Megicula is delighted in successfully overcoming Arcane Magic and cursing a spirit. Lolopechka screams out in anguish over Undine and in pain from her curse, and Megicula apologizes for getting near the Princess and causing the curse to react. Vanica decides to kill Lolopechka when she sees that the Princess is unable to continue fighting. However, Noelle stands back up and refuses to allow that. Noelle charges through Vanica's attack and refuses to give up, which shocks Megicula and Vanica. Noelle then drives her lance through Vanica.[16]

After a follow-up attack injures her, Vanica decides to take Lolopechka hostage instead of killing the Princess. Megicula advises that killing the Heart Kingdom's knowledge would be more advantageous, but Vanica wants to motivate Noelle to become stronger. Vanica then flies back to the Spade Kingdom.[17]

A few days later, Megicula's personality emerges again when Charlotte Roselei modifies the curse on her Briar Magic into an anti-curse magic.[18] Shortly after, the first gate to the underworld opens, and Vanica is able to access 100% of Megicula's power.[19]

After Noelle defeats Vanica, Megicula partially manifests itself out of Vanica's body and stops Noelle from killing Vanica. Megicula reveals that it can manifest its body in the living world by sacrificing three powerful mages of the same sex—Acier, Vanica, and Lolopechka. Wanting the humans to kill each other, Megicula alters Lolopechka's curse, turning her into a devil.[20] Megicula explains its own process for reaching the living world and forces Lolopechka to continue fighting Gadjah. Noelle tries to attack the devil, but Megicula's power is too strong. When Charlotte tries to weaken the curse power, Megicula forces Vanica's body to create spikes of blood that destroy the briars and Rill's protective painting, pinning down both captains. Megicula claims victory after Lolopechka gravely injures Gadjah and Noelle's Saint Valkyrie Dress comes undone.[21] Megicula claims that no one can help them since Decaying World covers the area and will stop any magic. However, Gadjah converts his lifeforce into magic in order to cast Apocalypra Astrauza, an Ultimate Magic spell that, to Megicula's surprise, overcomes Decaying World. As the spell disintegrates the devil's body, Megicula's heart is revealed to be located in the head. Noelle tries to create a Saint Stage sword in order to strike the heart,[22] but Megicula's highspeed recovery curse completely restores its body.

Charlotte and Rill fight Megicula and Dark Disciples Megicula's reanimated Dark Disciples fight Charlotte, Rill, and his valkyries.

The devil re-curses Undine to prevent Noelle from using Saint Stage again. Noelle refuses to give up, so Megicula slowly destroys parts of Noelle's armor, while questioning why humans continue struggling against those who are stronger, to which Noelle counters that never giving up is humanity's strength. Megicula decides to detonate the devil power in Lolopechka, planning to wipe out the humans in the castle and fully manifest itself. However, Asta flies in and nullifies the building magic power, much to Megicula's annoyance.[23] Recognizing the risk that Anti Magic poses, Megicula tries to kill both Lolopechka and Vanica, but Charlotte's briars disrupt the curse runes. Megicula is surprised and confused that Charlotte is still alive and that her magic power is increasing, and Rill explains the secondary effects of his Twilight of Valhalla spell, which Megicula finds fascinating. The devil then resurrects a hundred Dark Disciples, imparts them with devil power, Blood Magic, and Steel Magic, and sends them to attack Rill and Charlotte.[24] The two captains create stronger spells to take on the Disciples, so Megicula fuses some of the Disciples into giant, fully-armored soldiers capable of blocking the spells. One of the giants threatens Noelle, but it is destroyed by Luck Voltia in his Lightning Battle Fiend form.[25]

Luck and a revived Gadjah then charge through the Disciples and destroy Megicula's body, leaving the devil's heart exposed again. Noelle flies to it and tries to stab the heart, but the devil's Decaying World stops the sword. As Megicula's body regenerates, the devil creates several blood spikes with which to strike Noelle. Suddenly, Nozel swoops in, protects Noelle with silver shields, and prepares to exact his revenge on the devil.[26] Nozel begins barraging the devil with Silver Spears, so Megicula coats itself with Steel Magic and counterattacks with Blood Magic. However, Nozel's magic overwhelms the devil and destroys its body. After that, Noelle cuts through the devil's heart. As it disintegrates, Megicula admits that it was wrong about humanity's strength. Its Malevolent Femcantation spell also dissolves, freeing Acier's captive soul.[27]