The Application form in duplicate.

Photographs
Two identical photographs (45mm x 45mm), should be glued to the application form

Curriculum vitae
Curriculum vitae in duplicate on A4 size paper which includes the educational background, work experience, hobbies, and other relevant information.
An outline of your activity plans in Japan(in duplicate).
Statement of the reason of why you are applying for the Working Holiday visa in duplicate on A4 size paper.
Proof of adequate travel funds(such as a return ticket, proof of possession of a bank account, traveler's checks, etc.).
Proof of sufficient funds to support the initial stay in Japan:
At least US$2000 for a single person, US$3000 for a married couple.