Core-chan is the anthropomorphic personification of the Earth's core, following the viral success of Earth-chan in the late 2010s. Characterized by her fiery hair, glowing eyes, and intense personality, Core-chan represents the molten center of our planet. The meme gained traction within the 'Planetary Moe' subculture on platforms like DeviantArt and Pixiv before spreading to Reddit and Twitter. Usually depicted as the hot-headed or 'tsundere' sister to Earth-chan, Core-chan is frequently used in memes involving geology jokes, global warming commentary, or literal interpretations of being 'hot.' Her design serves as a creative way to blend scientific facts with modern internet anime aesthetics.