What is no faces real name?

9 HIS NAME IS KAONASHI For those who don’t speak Japanese, No-Face is likely only known as “No-Face,” but in Japanese, the spirit’s name is actually Kaonashi.

Why is No-Face nice to Chihiro?

Exposed to the corruptive thoughts and greed of the workers, he quickly grew to encompass their personalities, hoping that his endeavor to be like those around Chihiro would eventually garner her affection for him.