Japanese school regulations looking for unnatural hair.
Many Tokyo schools are asking students to prove why their natural hair is not straight and black.
Researches has revealed that over 40% of Tokyo run high schools ask students to submit paperwork.

The Tokyo education board says the aim is to avoid misunderstanding wherein staff tell children to change the color they think may be colored or treated.
They say it is not compulsory.
Some schools even want proof in the form of photos from when the student were younger.
If the students hair were wavy or brown.
Parents have to sign and stamp the documents and describe the students’ natural hair condition.
Stating that their hair, if not black or completely straight, is natural.