Halley, a classmate of Naoko, radiates unwavering friendliness, her appearance mirroring a teal comet with glossy black eyes, a vibrant orange bow atop her head, and a shimmering multicolored aura. Bubbling with enthusiasm and optimism, she tackles tasks proactively, often cheering, “Halley the comet’s on it!” Her interactions—like those with peer Babu Lisa during collaborative efforts—reveal a tenacious social style that occasionally borders on overeagerness, particularly when others seek personal space. Inspired by Halley’s Comet, her design and name reflect celestial themes, blending a cosmic aesthetic with boundless energy that mirrors the dynamism of her astronomical namesake.