• English
  • Japanese

Login as a guarantor

A. How to log in

Open the login page using the browser.
http://keio.jp/

Enter the user ID (guarantor ID) and password.

Form Format Example
User ID (guarantor ID) The guarantor ID notified via the postcard 99999999@gr
Password The password set to the entered ID. Ju92#1515Yo

Please enter your user ID (guarantor ID) in the username field.
After correctly entering the ID and password, click [Next/Verify]. Then keio.jp portal appears.

B. If unable to log in

If you failed to log into the system due to the wrong ID or password, an error is indicated as a red line under the ID / password input fields. Check the following points.

  • Both user ID (guarantor ID) and password are correct.
  • The domain part (e.g. xxxx@gr) is included in the user ID (guarantor ID).
  • Only single-byte characters are used for both user ID (guarantor ID) and password. Check if there is any double-byte character.
  • The domain part of the user ID (guarantor ID) is "gr".
  • Check that the Caps Lock or Num Lock key is not enabled on the keyboard.
    You might have registered the password with the Caps Lock key turned on during the activation.

If the problem still cannot be fixed, follow the procedure for [Forgot user ID] and [Reset password], and re-enter your ID and password.

C. How to delete the browser's cache

When the browser's cache is not empty, the following error dialog may appear and you cannot log in.

"You are logged off because no operation has been done for a certain period of time."
"An unexpected error occurred."

If this failure occurs, see [ How To Clear the Browser's Cache and Other Records].

D. Contact information


See the contact information written in the [Information for Guarantors].

Last-Modified: October 15, 2024

The content ends at this position.