Hatsuka ranks among Nina Yamada's closest friends, radiating an upbeat and energetic demeanor. She pursues her desires with directness, occasionally revealing a mischievous streak while maintaining deep care for her friends. Her appearance features short honey-blonde hair and periwinkle eyes, consistently paired with her school uniform—a blue sailor outfit—and a pink sweater vest. Alongside Yôka, Hatsuka steers early conversations with Nina toward realistic romantic expectations, dismissing notions of a sudden knight in shining armor. When Zero and Ichii enter Nina's life, Hatsuka and Yôka naturally see less of Nina outside school due to the boys' constant presence, though they keenly observe Nina's shifting dynamics with both newcomers. Meeting Gô sparks Hatsuka's immediate romantic attraction, captivated by his mature mystique. Her pursuit includes engineering a kimodameshi pairing to secure time alone with him. After the initial magical examination period concludes, Hatsuka rekindles regular outings with Nina, offering steadfast emotional support during Zero's absence. Though her direct involvement wanes slightly in the second examination phase, she upholds her role as Nina's unwavering, supportive confidante throughout.