Avengers Confidential: Black Widow to Punisher

They are both action movies based on marvel superhero characters and are both animated by Madhouse like the other marvel shows they made that you would also like if you like these which are Iron Man show, Blade show, Wolverine show and X-Men show. 

Emiya Kiritsugu and Punisher have a lot in common: -90s anti hero -go through lengths to save their loved ones -clash with their partners (Saber and Black Widow) -professional killers with no emotions  

Lelouch and Punisher have what is in common: -90s anti hero -wear black -tragic past that damaged their family -avenge through bloody methods -guns 

Punisher is basically the og Light Yagami during his debut. Death Note's theme correlates to Punisher's philosophy that the evil must be killed for the preservation of society. Punisher and Kira undergo as vigilantes to save the day though Punisher is op while Kira prefers to stay behind the scenes as they unfold. Regardless watch Punisher if you like Kira because of the 90s anti hero trope that is frequently used to show how nasty anti heroes are when it comes to crossing moral boundaries to achieve their standards.