YoRHa, Pearl Harbor descent record. Volume 4 a NieR:Automata story

The YoRHa survivors of the Pearl Harbor Descent work to carry out their mission alongside members of the Resistance, androids who were sent to Earth 200 years prior. Together, the group breaches the elevator hall on Mount Ka'ala, beneath which lies the enemy server they must destroy. Meanwhile, in the YoRHa base known as the Bunker, the YoRHa unit's requests for support are denied by the Commander and the Council of Humanity. What is the true pur...