Aya Natsume

Aya is the younger sister of Shin Natsume, and Maya Natsume. She is a freshman at Toudou academy. She has brown hair (auburn in the anime). She is instantly infatuated with Souichiro Nagi when he crashes into the shower room, insisting that he marry her, as it is a tradition of the Natsume women that the first man to see her unclothed must become her husband. She pursues him relentlessly throughout the series despite his vehement protests. This attraction to Souichiro also leads to a rift between her and her sister, as Souichiro is in love with Maya. Masataka Takayanagi is also in love with Aya, but she has shown no interest in him. However, she does respect him for his strength, skill, dedication, and typically calm nature. She eventually entrusts him to guard the computer chip that F is after.

Throughout the Manga, it is shown that Souichiro and Aya have some sort of mental connection between them that calls to the other when they are in trouble. This could be due to their powers complimenting each other, since Nagi's Dragon's Fist can collect and supply huge amounts of KI and Aya's Dragon's Eye can consume an unlimited supply of KI.

Name: Aya Natsume 

Relatives: Maya Natsume, Shin Natsume
Gender: Female
Classification: Human
Age: 15-16
Powers and Abilities: Super strength, super speed, agility, durability, with the power of the Ryuugan she can see into the past, present and possible futures, has the ability to see and hear the dead, Aya has an affinity for katanas and is fairly skilled with them   

Weapon: Reiki