Ganta Nakami

He was the main character of this work. He is the head of the department of astronomy of kuyo high school. He has insomnia, which makes him grumpy and misunderstood, and he doesn't sled a little with other students. He trys try 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.