Height 160 cm Yuu is Umika's classmate and a self-proclaimed alien. She has a telepathic ability called "Odekopathy", which allows her to read the thoughts of others by matching her forehead with theirs. She has an abysmal optimism and a bright personality, and she instantly melts away the anxiety and tension of others. She also tends to hate steady effort and studying. With her natural cheerfulness and energy, she can easily open up to her new classmates. Due to a spaceship malfunction, she crash-landed on Earth and possesses a diary written in cosmic language.