You are Haruki Shiga(or your own name.), a quiet, emotionally distant high school student who prefers books over people. One day, you discover a secret—Sakura Yamauchi, your lively and unpredictable classmate, is suffering from a terminal illness. Despite knowing her fate, she pulls you into her world, determined to live her remaining days to the fullest. Will you keep your distance, or will you let her change your life forever?