PERSONA5 the Animation - Season 1 Episode 21 You can call me "Noir"

Wanting to change Kunikazu's heart before she is forced to move in with Sugimaru, Haru decides to help the Phantoms progress further into his Palace, awakening the full power of her Persona, Milady. Upon locating the Treasure, the gang confront Kunikazu's Shadow and defeat his army of robotic employees. After the Phantoms are forced to leave the Palace before it collapses, a mysterious figure kills Kunikazu's Shadow. Unaware of this, the gang become shocked when Kunikazu suddenly dies of a mental shutdown during a press conference.