Offered to the Black Dragon, I Became the Holy-Blood WitchEpisode 7

Ivy, the cursed twin, is scorned; Lilia, the other twin, is adored. Caius the phoenix bonds with Ivy but gives his heartfeather to Lilia and forces Ivy to die in Lilia's place before the black dragon. Yet dragon Adrian recognizes Ivy, who saved him as a child. Her blood cleanses his blight, revealing her as the Holy-Blood Witch. Now the world worships Ivy; Caius begs her with his last heartfeather, while Adrian refuses to let her go. Ivy must choose: guilt or love.