Black Clover: Season 1, Episode 129

1 - 129: Devil Megicula

Asta and the others manage to meet with the queen of the Heart Kingdom, Loropechika, who had also been chosen by the water spirit, Undine. They are able to confirm that the devil's curse that they spotted in the Heart Kingdom was originating from Loropechika herself and that the devil was in the Spade Kingdom. Meanwhile, Vanessa, Magna, and Luck went to investigate the Diamond Kingdom and find it in ruins after a single mage of the Spade Kingdom had annihilated them. In order to defeat this devil, Loropechika asks Asta and the others for their help.