Ganta Nakami

Ganta Nakami is the head of the Department of Astronomy at Kuyo high school who has insomnia, causing him to be grumpy and misunderstood. Despite this, he tries not to be friendly with Isaki in front of other students. After meeting Isaki in the astronomical observatory (astronomy department room), he started astrophotography with a camera bought by her father at Christmas as an activity of the astronomy department. Resistant to machines.

Appearance
Ganta has black hair and eyes. He wears glasses and a standard school uniform.