So you didn't get inspiration from someone you know ?

Kishimoto : No, he's just the teacher I never had. Someone who push his student forward instead of yelling him back to square 0.

It's with thoses bonds that you try to explain mutual gratefulness. Can you explain more about that ?

Kishimoto : There's no real bond without gratefulness. Today I'm trying to put friendship, Parents/Children Love and all that.
Since I'm now a father myself, I learned a lot about that.

Between friends and rivals, aknowledgement is done by fighting. But with Parents and Children, Brothers and Sisters, bonds already exists. How you explains bonds varies between types of bonds ?

Kishimoto : Since readers already know what is a family and what are those bonds, I don't have to really write about that.
Friendship can be hard to explain. Like brothers without blood relation, "Brothers of hearts" I call them. In Naruto there is multiple type of bonds.
So what if they are not of the same blood, if the father sees the kid as his son and the kid sees the man as his father, then it's ok.
I did that with Iruka and Naruto, I wanted to intruduce them like father and son. In part 2, this is less obvious.

That's right, Iruka started in the manga as the father Naruto never had.

Kishimoto : Since Naruto hadn't any parents at the start, I wanted him to see Iruka as his father.