How does the 30% personal and $5 friend Membership discount work?

The Pro discount works in two ways.

First, you save 30% on every country plan you buy. The price drops on its own at checkout, with no code to enter. The discount stays active for the whole length of your membership.

Second, you get a personal referral code. When a friend uses it on their first order, they get $5 off, and you get $5 in Ohayu Credits once their payment settles. The code is in your profile, and you can tap Share code to send it to as many people as you like.