Skip to content

Registering a SEGA ID

Even though it is not necessary to have a SEGA ID to play the game, creating one gives you access to things like:

  • Transferring your data to another card if card is lost or damaged
  • Viewing scores
  • Customizing settings and cosmetics

... and many more.

While you can use social media login (X/Twitter and Facebook) for CHUNITHM International, the Japanese version strictly requires a SEGA ID.

To begin, go to the SEGA ID registration page.

Submitting an email address

On the first page, enter a valid email address (メールアドレス) in the white input area and then click the green button below to submit your email address.

SEGA ID email entry page

You should have received a verification email with a link to https://gw.sega.jp/gateway/auth/create/setting.html?key=.... Follow this link to verify your email address and continue registration.

Fill in SEGA ID information

Fill in the areas with your information:

  • SEGA ID: Your SEGA ID username. It must be between 6 and 30 lowercase alphanumeric (0-9, a-z) characters, and the first character cannot be a number.
  • パスワード (Password): Your SEGA ID password. It must be between 8 and 16 alphanumeric (0-9, a-z, A-Z) characters, and must have at least 2 letters and a number. It cannot be the same as your SEGA ID.
  • パスワード（確認用）(Password confirmation): Enter your password again.
  • 秘密の質問 (Security question): Select one of seven security questions:
    • 通っていた幼稚園（保育園）の名前は？: What was the name of the kindergarten you attended?
    • 生まれた町名は？: What city were you born in?
    • 最初に乗った車の車種は？: What model was your first car?
    • 子供の頃の憧れの選手は？: Who was your sports idol growing up?
    • 初恋の人のファーストネームは？: Who is your first crush?
    • 最初に飼ったペットの名前は？: What is your first pet's name?
    • 中学三年生の時の担任は？: Who was your eighth grade homeroom teacher?
  • 秘密の質問（回答）(Security question answer): Answer the security question you selected.
  • 生年月日 (Date of birth): Select your year (年), month (月) and day (日) of birth.
  • メールマガジン (Newsletter): Agree to receive email notifications to the address you submitted. You can untick the checkbox to not receive them.

SEGA ID information entry page

Once you're done, select Next (次へ) to continue.

Confirm your information

After you submitted your information, you are given a last check to verify that the information you entered is correct.

When everything looks good, scroll down to Agreement to "SEGA ID Terms of Use" and "Personal Information Handling" (「SEGA ID利用規約」「個人情報の取り扱いについて」への同意) and tick the checkbox saying I agree (同意する).

After that, scroll down to Captcha (画像認証) and enter the Japanese hiragana characters in the image. You can use an online Japanese keyboard to type these, or ask a friend.

Once you have entered the captcha, select Agree to terms and conditions and register (規約同意して登録) to register your SEGA ID.

SEGA ID information verification page

Linking a card to your SEGA ID

To link a card to your SEGA ID, navigate to the Aime service site and login with your newly-created SEGA ID. The website has an English version, so you can take it from here.