Mr. Robot

At a robot showcase, the robot 'Max' malfunctions, leaving CEO Hyeok-Eun Kang dead and officer Tae-Pyeong Han in a coma. His spirit awakens inside Max, saving Kang’s niece Nana from a takeover plot by her uncle. Struggling with his new robotic body, Tae-Pyeong fights RCC and Kang Min’s deadly machines, culminating in a brutal showdown.
In sacrifice, the broken robot protects Nana, proving his humanity in the end.

(Source: E-DEHI Animation Studio's Official Website)