Jirou Yamamoto

Jirou Yamamoto (山本 次郎, Yamamoto Jirō) is a member of Great Wheel Act, the human organization.

Post-Third Cochlea Raid
Nico gave a card to members of Black Goat as a second option to obtain medical care for Akira Mado's treatment that bore Jirou's name and the contact information for the Great Wheel Act.