It's super easy.
Actually, for oversea countries like US, Europe, Personal Information Protection Law is more strict than Japan, and thus, we have to state the use of personal information that are collected through website.
Thanks to Shopify, we can get it from Shopify and they have a tool for that!
Logging in is a bit of stress, so lets just proceed with 「I’ll skip the Shopify trial for now, just create my policy」.
In few seconds, you'll get the email to the address you entered above.
The screen will change like below.
Shopify makes boring but time consuming things easier.
And click save, then you'll see brand new page.
It works well.
As I'm not a native English speaker, if I try to make it from the scratch, it might take more than 10 hours.. And even though, I've managed to make one, it might have mistakes and wouldn't be able to cover all. So don't hesitate to make one from Shopify's official tool!