MTL English: The story begins in the Spade Kingdom arc. In the Clover Kingdom, the headquarters of the Black Bulls and the Golden Dawn were under siege by Zenon and Dante Zogratis. Meanwhile, Vanica Zogratis had besieged the Heart Kingdom. The Heart Kingdom had recently separated and gained independence, but its defenses were weak.
Asta had just left to return to the Black Bulls headquarters, so Noelle, along with several other warriors, was defending the Heart Kingdom. Vanica Zogratis appeared and defeated the Heart Kingdom's forces one after another. Only Noelle remained. Noelle, the only one with the power to oppose Vanica, would she be able to seize victory? Noelle unleashed her Valkyrie Armor and Aqua Lance, pouring her righteous anger into unleashing it upon Vanica, but Vanica's power was far too great for her, and she was ultimately overwhelmed. Noelle vowed revenge for Vanica (Megicula) killing her mother, Asiel, years ago. Vanica was intrigued, realizing that the girl currently fighting was the daughter of the great Asiel Silva, and she couldn't miss this opportunity.
Instead of killing the weakened Noelle, Vanica began to violate her body, groping her innocent flesh, and even attempting to kiss her. Noelle's first kiss was now gone; it had been stolen by another woman, and by an enemy at that. It was a kiss Noelle had saved for Asta, her unrequited love and Black Bulls teammate. Vanica began to touch Noelle's vagina. Humiliated and shaken, Noelle finally couldn't bear it any longer and tried to stab Vanica with her Aqua Lance, but ultimately failed. Vanica recoiled for a moment, but suddenly activated her blood magic, aiming at Noelle's abdomen. A short time later, a red mark appeared on her abdomen. It was a uterine tattoo. Vanica had used her blood magic to mark Noelle so that she could become pregnant with her vaginal fluids.
The tattoo on Noelle's uterus, indicating she is in heat and in need of reproduction, strongly influences her, making her more susceptible to Vanica's temptations. While everyone else is still fighting, Vanica begins intense, raw sex with Noelle in the middle of the battlefield. Some from the Heart Kingdom see this and try to help Noelle, but they are powerless and can do nothing. Finally, Vanica finishes ejaculating, injecting her vaginal fluid deep into Noelle's uterus, fertilizing Noelle's egg with her own, and the two eggs fuse to give birth to a new baby girl.
Having impregnated Noelle, Vanica now sees her as nothing more than a tasty snack, and when the war ends and the Heart Kingdom is destroyed, she decides to take Noelle back to the Spade Kingdom. Taken to the lower levels of the Spade Kingdom's dungeon, Noelle is subjected to daily lesbian rape by Vanica, and her vagina swells from being constantly rubbed against Vanica's vagina. Eventually, Vanica begins to corrupt Noelle using blood and demonic magic, plotting to make Noelle Silva her new wife, mistress, and mother of children. Vanica then begins to transform Noelle into a succubus. Completely broken and defeated, Noelle is separated from her friends in the Clover Kingdom.
Several months later, Asta, the Black Bulls, and the remaining members of the Clover and Heart Kingdoms besiege the Spade Kingdom and launch an attack. Determined to find his friend Noelle, Asta explores deep into the dungeon and finally finds her. She has been completely transformed. With lustful eyes, demonic wings, horns, and a tail, Noelle has become Vanica's sex slave. Vanica appears and begins to kiss and mock Noelle in front of Asta. Asta can no longer tolerate Vanica and her evil deeds and, in a fit of rage, punches her. Vanica is sent flying, and Asta continues to punch her in the face repeatedly. Finally, Vanica spoke, telling Asta to "look to the left." Asta looked to the left and saw Noelle there.
Noelle had given birth, and out came a baby girl who looked like a demon. Overwhelmed with grief and despair, Asta hugged the baby and began to cry. His heart was filled with regret. If he had been in the Heart Kingdom, he could have helped Noelle fight Vanica. But it was too late. Memories of her time with Asta flooded Noelle's mind. Now, she had been reduced to a succubus's sex slave.