Haruka Nagi

Ikuru's teacher and a "perfect being." She forced Ikuru to want to live and be self-reliant after his operation with his implanted body parts. She was attracted to Ikuru before and seems to be somewhat reluctant to accept Ai now. Haruka is a very esteemed doctor at the hospital where Ikuru is treated and appears to be connected to the precarious state of the earth at the moment. She is man's last completion form by gene improvement. She is a "sixes." Sixes are members of a super elite that have been passed down from generation to generation. Sixes are people who surpass all other former superior beings in intelligence, athleticism, survival power, and spiritual strength. They also posses flawless physical features. In a sense, they are human beings in their ultimate perfected form.