Tap the invitation URL (see image below) / Scan the QR code with your camera app
Tap "Join this calendar"
Select a profile
You can choose either the profile registered when creating your account or create a new profile
For example, use "Suzuki" for a work calendar and "Dad" for a family calendar
Once you have joined, you can check the members from the member list under "More / Settings" at the bottom right of the calendar screen
Notes
If the participation confirmation screen does not open when tapping the invitation URL, please copy the URL and try again using a recommended browser (Google Chrome / Safari / Firefox / Microsoft Edge)
Please also check whether the invitation URL has expired
The validity period of the invitation URL is 7 days from issuance