Koromi Ukari is a middle school student and a classmate of the main characters Meguru Amatsuki and Sumire Kisaragi. She is easily identified by the sheep hood she wears and her constant, serene smile. Her personality is gentle and calm, though she is notably clumsy and frequently trips. She often ends her sentences with a soft sheep-like sound, reinforcing her connection to sheep. A generous nature is one of her defining traits, as she has the unusual ability to produce snacks from somewhere on her head and happily distributes them to those around her. Her motivations are not deeply explored, but her actions suggest a consistent desire to bring comfort and cheer to her friends through her kind demeanor and small offerings. In the story, she serves as a supportive friend who adds lighthearted moments and a sense of normalcy to the lives of the protagonists. She maintains a warm, easygoing friendship with Meguru and Sumire and is a reliable source of positivity. Throughout the series, she does not undergo major personal change, but her unwavering kindness and playful quirks make her a steady, welcoming presence in the group. Her most notable ability is her snack-generating talent, though she does not possess combat or magical powers, contributing instead through her amiable personality and support.