Kizuna Referral
Kizuna Referral ties two players together for good. Invite a friend and you become their Master; join through someone’s code and they become yours. From then on, whenever either of you buys something on-chain, the other receives
U-Coupon — a discount on their own next purchase.
The Two Roles
Becoming an Apprentice
This happens once, at the very start of your adventure:

Gaining Apprentices
There is no limit on when you can invite — only on how many:

What Each Side Earns
Every on-chain transaction — a Crystal pack or a paid Check-In tier — pays the other side of your bond. Nothing is ever taken from the buyer:
Both are paid in
U-Coupon — a discount balance in US dollars, spent automatically on your own next purchase.
Both sides must be active to receive: a share is only created for players who logged in within the last 48 hours. See the
U-Coupon page for how the balance is spent.
The Rules
| Rule | Detail |
|---|---|
| One Master, forever | The bond cannot be changed, transferred or broken — by either side. |
| Up to 20 Apprentices | Slots never free up, so a full list stays full. This cap is a starting figure and may be raised later if the program proves popular. |
| First login only | A Master can only be chosen during your first session, while the account is brand new. |
| Not your own code | You cannot be your own Master. |
| Not an existing Kizuna partner | If you are already bonded as Kizuna partners, you cannot also become Master and Apprentice — and the reverse is equally blocked. |
| No mutual pairs | If someone is your Apprentice, you can never become theirs. |
Where to Find It


Referral and Kizuna Partners
The two systems share one code but stay separate. A Kizuna partner is a mutual bond you can form at any time and break later; a referral link is one-directional, made only at first login, and permanent. Your Apprentices do not use up partner slots, and where a code is entered decides which kind of bond you get: the first-login prompt makes a referral, the Kizuna page makes a partner.