Nini Tan is the primary mascot character from the Ukagaka (also known as Ghosts or Nanika) desktop mascot software. She is depicted as a cute, small girl with cat-like features, often accompanied by her friend Sakuras. Nini Tan's role is to interact with the user through speech bubbles, providing information, entertainment, and companionship. She is known for her friendly and curious personality, making her a beloved figure among Ukagaka users and fans in the broader desktop mascot community.