Olivia is one of the characters introduced in volume 1.
- Olivia has blonde, straight and somewhat thick hair. She has a friendly face which leads that other people think that she is really kind, and she has light blue eyes.
- Olivia has a very childish personality, but also very cheerful. She always wear a smile on her face and always play jokes with Take. However, she also acts like a big sister figure to the other.