You can use the service by using your library user number.

For those who have a borrowing and returning certificate, and are not registered, please register here.

user number

password

Remember me and skip this next time.

login

Enter your e-mail address, click send, and a password will be sent to your address.

To use the service, please enter the password you receive.

If you do not receive an e-mail

• Turn off your Wi-Fi connection and receive the e-mail by using your 3G/LTE network.
• There is a possible error with the entered e-mail address.
• It may be a domain name filter error.
• Please set your e-mail account to receive e-mails from “katch.co.jp”

Register your address,and connect.

You can log in using the following SNS.

• The account information was delivered based on the customer’s consent.
• Passwords used in different services will not be informed to other companies.