Kucy is a shapeshifters who works as an assassin for Zorzal's force. She first appears as disguised citizen with dozens of Imperial Soldiers to ambush Tomita's group. After all her comrades are slaughtered after Tomita detects their fake ID number, she is taken by Tomita since he mistakes her as captured citizen.
After the whole ambush operation conducted by Herm against Tomita's squad failed miserably with the death hundred of Black Dogs, Orcs and three Ogres, Herm commands her to attack Tomita's squad through the special flute to give the JSDF some trouble out of frustration for his failed attack. After Tomita's squad and Komuzaraki's crew begins to arrive to the helicopter for evacuation, she changes into her breast form and impales a cameraman with her claw and attacks Tomita's squad while they are taking off. At this stage, no one dares to shoot her since it will mean damaging the engine of the helicopter, which can lead to clash.
As the result, Shino engages her in hand-to-hand combat with her combat knife and manages to injure both her arms. Taking the chance, Shino and the rest of Tomita's squad push her to the edge of the helicopter. However, she still clings to the edge causing turbulence in mid-flight. She later meets her end when Tomita gives her a headshot with his pistol in which she falls dozens feet below to her death.