Natsumi

Nanami (七海) is a student of Tokiwadai Middle School, first appearing in Shinyaku Toaru Majutsu no Index Volume 16.

Appearance
Nanami is described as a girl with a. During the heat wave, she wore a racing swimsuit like the other girls at Tokiwadai. At other times, she presumably wears the standard Tokiwadai uniform.

Personality
Nanami appears to be somewhat sheltered and had apparently not touched a 'gentleman' in her life.

Element Arc
On December 10th, when Misaka Mikoto brought Kamijou Touma to School Garden, Nanami was among the Tokiwadai girls who were curious about the 'gentleman' that Mikoto and Shokuhou Misaki were interested in. While Touma was walking down a hallway, Nanami snuck up behind him and touched his back with her finger before speeding off to regroup with her friends.

Abilities
As a student of Tokiwadai Middle School, Nanami can be assumed to be an esper with a Level of 3 or 4, though her ability isn't known.