Part Time Employee in Konoha - Chapter 4: Task

... speaking ill of others behind their backs, especially not to show immaturity in front of young people.

"Anyway..."

"My Teacher is someone too kind and somewhat cowardly to taint himself with darkness..."

"If you come across the Third Hokage in Konoha, make sure to stay away from the old man. He's very good at beguiling people with his words, and it's easy to be brainwashed by his rhetoric..."

But...

Lord Orochimaru...

You're quite good at brainwash ...