[SHAD0W]

Do you live in Japan? Why don't you just ask your boss what would be appropriate? Different places will have different rules like here in England. As you can see from my picture my hair is pretty wild (and changes colour often) before I went to Japan I was advised to dye my hair black and have a short back and sides cut. After arriving there I asked the Principle at the school I worked in if I could style my hair into spikes and she said it wouldn't be a problem - probably because it was much shorter than in my picture. If I went to school like that, she would probably have said something different...