They call her Die Sushi Bitch, at least that is what she writes on her YT profile page. She's got amazing hair and makes videos about haircare and hairstyles:
She's also got a photo series online called "the road to longhair":
And now for the sad part, it seems that she's got some sort of illness. i didn't read everything yet, but if you're interested, here's her blog:
longhairedatheart.blogspot.com/