Naturalization motivation letter (動機書) drafting tool

The motivation letter is the document where you explain, in your own words, why you want to become a Japanese national. KIKADIY's tool uses what you entered in the application form and the two résumé forms to produce a well-structured draft. You decide the content, and you write the final copy by hand.

Plan: Max plan — AI drafting of the motivation letter is a Max-plan feature. The application and résumé forms are available on lower plans. See pricing

What this tool does

  • Generates a draft from the history, family relations and residence record in your application form and résumés.
  • Rewrites a passage when you send a revision request such as "make the first paragraph more concrete".
  • Lets you edit the draft by hand at any time, then save, export or print it.
  • Lets you download the official motivation letter form for the handwritten copy.

What you enter

  • Basic data from the application form (name, date of birth, nationality, residence history)
  • Résumé (part 1): addresses, education, employment, family events
  • Résumé (part 2): travel history, skills and qualifications, languages
  • Optional free text: your reasons for applying and anything you want to add about your life in Japan

What you get

  • A draft in the usual order: how you came to Japan, your life here, why you want to naturalize, your plans after naturalization
  • Revised versions that reflect your correction requests
  • A print view and an export of the draft
  • The official form for the handwritten copy

Form notes and preparation guidance

Read the form notes and preparation guidance below before submitting. Confirm the current requirements with the Legal Affairs Bureau handling your application.

  1. Write concrete reasons for wanting to naturalize; write the date at the end and sign.
  2. As a rule, the applicant writes the letter by hand (word processors are not accepted).

Frequently asked questions

Can I submit the AI draft as it is?
No. The official form notes that, as a rule, the applicant writes the letter by hand. Read the draft, put it into your own words, copy it onto the form by hand, and add the date and your signature.
What should the motivation letter contain?
The usual structure is: how you came to Japan, your life in Japan, your concrete reasons for wanting to naturalize, and your plans afterwards. Concrete details from your own experience read better than abstract statements. See the writing guide under related guides.
Who has to write one?
One letter per applicant. According to the Legal Affairs Bureau guidance, applicants under 15 do not need one. Confirm the current guidance with the bureau you apply to.
Do I need an administrative scrivener?
The motivation letter is written by the applicant. Hiring a scrivener is optional, and KIKADIY does not replace a scrivener or the bureau's pre-application consultation. If your history is complex, consider professional advice.

Start for free

Registration is free. The application form and the family-relations documents are available on the Free plan. If you are not sure you qualify, take the free eligibility check first.

Related guides

KIKADIY is a tool that helps you prepare documents. It does not guarantee that naturalization will be granted, and it does not replace a licensed administrative scrivener (gyoseishoshi) or the pre-application consultation at the Legal Affairs Bureau. You are responsible for the final content and submission of your documents.

Last updated: 20 October 2026