In the Demon World, Meitaro, the rightful heir to the Demon King, summons a little human girl through an unexpected turn of events. He names her Bibi and begins to shower her with charity and kindness, but his true intentions remain shrouded in mystery. A young demon lacking magical powers, Meitaro originally sought to gain strength by consuming a human heart—yet the frail girl he called forth is far from the prey he imagined. The story follows their growing bond and the psychological tension that arises as Meitaro’s hidden motives clash with his developing feelings for Bibi. Set against a supernatural backdrop of demons and otherworldly politics, the narrative explores themes of transformation, attachment, and the blurred line between love and predation. The Chrysalis Heart expands on a one-shot of the same name that caused a huge sensation, weaving romance, isekai, and psychological elements into a slow-burning character-driven tale. As the relationship deepens, the question of whether Meitaro can break free from his original dark purpose—or if Bibi holds secrets of her own—drives the unfolding drama.