This article is about the stage play. For the novel based on the same story, see NieR:Automata - YoRHa Boys.

YoRHa Boys is a stage play written by Yoko Taro which tells of the events before NieR:Automata. It ran from January 31 to February 4, 2018.[1]
A genderbent version of the play titled YoRHa Girls Ver.1.1a ran from December 3-6, 2020.
Summary
(To be added.)
Notable Characters
Instructor Black - YoRHa male unit from YoRHa Boys book. Deceased.
YoRHa Type D No.2 (D2) - YoRHa male prototype unit from YoRHa Boys book. Deceased.
YoRHa Type H No.9 (H9) - YoRHa male prototype unit from YoRHa Boys book. Unknown.
YoRHa Type A No.3 (A3) - YoRHa male prototype unit from YoRHa Boys book. Deceased.
YoRHa Type G No.4 (G4) - YoRHa male prototype unit from YoRHa Boys book. Deceased.
YoRHa Type A No.6 (A6) - YoRHa male prototype unit from YoRHa Boys book. Deceased.
YoRHa Type S No.21 (S21) - YoRHa male prototype unit from YoRHa Boys book. Deceased.
YoRHa Type G No.22 (G22) - YoRHa male prototype unit from YoRHa Boys book. Unknown.
- SS - Pod also makes an appearance in the form of a new “SS” technology that all of the M Squad are given (SS = Support System Model Delta Code 153). Unknown.
Cactus - Resistance member from YoRHa Boys book. Unknown.
Phlox - Resistance member from YoRHa Boys book. Unknown.
Lotus - Resistance member from YoRHa Boys book. Unknown.