- This article is about the contact for the Great Wheel Act. For other uses, see Jiro (disambiguation).
Jirou Yamamoto (山本 次郎, Yamamoto Jirō) is a member of Great Wheel Act, the human organization.
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Post-Third Cochlea Raid[]
Nico gave a card to members of 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.[1]