Nakajima Keisuke

Nakajima is part of Nagai Kei's former group of friends, though Nakajima seems to be the only one actually caring about Nagai, Because of this he decides to join what is called the Pro-Ajin Association which is later revealed to be a fake website design by the ministry of health, labor, and welfare, in order to surveillance the number of people standing up for Ajin rights.