魂の文字列

A close-up anime-style illustration of a silver-haired girl with long flowing hair, wearing a simple white dress, deeply focused on calligraphy. Her expression is serious, with slightly furrowed brows, and a bead of sweat on her forehead reflecting her intense concentration. Her hands and fingers, including her ring finger in an extended position, are delicately and anatomically accurate, holding a calligraphy brush with precision. Around her head, glowing mathematical equations and geometric shapes float, illuminated by a soft blue-white light. The background is softly blurred, suggesting a traditional Japanese setting with a hint of natural light coming from the side, subtly highlighting her delicate features and emphasizing her focused gaze on the paper. The scene captures a sense of determination and elegance.