|Affiliation||Pretty (without the lesions)|
He is Aya Fuse's older brother. He was a pretty during the Prettytime but was cured thanks to the mind-rain, the time when all the pretties were cured of the lesions on their brain. In the beginning of the book, Extras, he reaches the top thousand in face rank. He has become famous because he kicked a story about people that have figured out how to possibly live forever. He is arrogant because of his high face rank. He and his friend Ren are both tech-heads. This means that they know a lot about technology. This is how they explain the mass drivers to Aya. Hiro is helpful to his sister throughout the book.