@Tri Olom, про Тайто читала где-то, но не помню, где.
Во, нашла, интервью Самуры и Кишимото:
>· Kishimoto pretty much confirms that the designs for Iruka and Kakashi were inspired by Blade's Manji and Taito Magatsu
naruto.fandom.com/wiki/Thread:160383?useskin=oasis
Это саммари, тут перевод: mangabrog.wordpress.com

>Kishimoto: But I take a lot of influence from you, don’t you think? I fell in love with Akira in junior high school, and then in university I fell in love with your work, so I take a lot from you. When I met Osamu Akimoto of Kochikame fame, he commented about how I was influenced a lot by Blade of the Immortal. The clothes and hairstyles gave it away — he was like, “Kakashi is Magatsu, and Iruka is Manji, right? I love that manga too, so I can tell.”

Samura: Oh, really?

Kishimoto: And he was dead on. You’ve influenced me in how I draw hands, too. I was amazed by the hand holding a gun in the original Blade of the Immortal chapter — the line running from the index finger down to the thumb, you really captured the flesh there so well. It gave me shivers.

Samura: But I was influenced by other people in terms of drawing hands too, you know. The first time I read a manga and thought, “Now here’s someone who can really draw hands,” was Yoshikazu Yasuhiko. I’d look at Arion or whatever and just think that it looked so good.

Но тут всё равно не явно. В пересказе всё прямее, чем есть.