Yuri Ootani is the main protagonist of the anime and manga series Alien Nine. She is a timid and sensitive sixth-grade student who is reluctantly chosen to join her school's Alien Party, a group responsible for capturing and managing alien creatures that invade the school. Despite her fear of aliens, Yuri tries her best to fulfill her duties, often struggling with her anxieties. Her journey explores themes of adolescence, fear, and personal growth as she faces increasingly difficult challenges with her friends.