diff --git a/src/main/resources/db/migration/mariadb/V251_2__add_aquanet_user.sql b/src/main/resources/db/migration/mariadb/V251_2__add_aquanet_user.sql
new file mode 100644
index 00000000..2f3c80af
--- /dev/null
+++ b/src/main/resources/db/migration/mariadb/V251_2__add_aquanet_user.sql
@@ -0,0 +1,49 @@
+CREATE TABLE aqua_net_user
+(
+    au_id            BIGINT AUTO_INCREMENT NOT NULL,
+    username         VARCHAR(32)        NOT NULL,
+    email            VARCHAR(255)       NOT NULL,
+    email_confirmed  BOOLEAN            NOT NULL,
+    pw_hash          VARCHAR(255)       NOT NULL,
+    display_name     VARCHAR(32)        NULL,
+    country          VARCHAR(3)         NULL,
+    last_login       BIGINT             NOT NULL,
+    reg_time         BIGINT             NOT NULL,
+    profile_location VARCHAR(255)       NULL,
+    profile_bio      VARCHAR(255)       NULL,
+    ghost_card       BIGINT             NOT NULL,
+    CONSTRAINT pk_aqua_net_user PRIMARY KEY (au_id)
+);
+
+ALTER TABLE sega_card
+    ADD net_user_id BIGINT NULL;
+
+ALTER TABLE aqua_net_user
+    ADD CONSTRAINT uc_aqua_net_user_email UNIQUE (email);
+
+ALTER TABLE aqua_net_user
+    ADD CONSTRAINT uc_aqua_net_user_username UNIQUE (username);
+
+ALTER TABLE sega_card
+    ADD CONSTRAINT FK_SEGA_CARD_ON_NET_USER FOREIGN KEY (net_user_id) REFERENCES aqua_net_user (au_id);
+
+ALTER TABLE aqua_net_user
+    ADD CONSTRAINT uc_aqua_net_user_canonical_card UNIQUE (ghost_card);
+
+ALTER TABLE aqua_net_user
+    ADD CONSTRAINT FK_AQUA_NET_USER_ON_CANONICAL_CARD FOREIGN KEY (ghost_card) REFERENCES sega_card (id);
+
+CREATE TABLE aqua_net_email_confirmation
+(
+    id           BIGINT AUTO_INCREMENT NOT NULL,
+    token        VARCHAR(255)          NOT NULL,
+    created_at   datetime              NOT NULL,
+    au_id        BIGINT                NULL,
+    CONSTRAINT pk_email_confirmation PRIMARY KEY (id)
+);
+
+ALTER TABLE aqua_net_email_confirmation
+    ADD CONSTRAINT uc_email_confirmation_aqua_user UNIQUE (au_id);
+
+ALTER TABLE aqua_net_email_confirmation
+    ADD CONSTRAINT FK_EMAIL_CONFIRMATION_ON_AQUA_USER FOREIGN KEY (au_id) REFERENCES aqua_net_user (au_id);
\ No newline at end of file