diff --git a/src/main/resources/db/migration/mariadb/V1000_10__fix_unique.sql b/src/main/resources/db/migration/mariadb/V1000_10__fix_unique.sql
new file mode 100644
index 00000000..9368fe67
--- /dev/null
+++ b/src/main/resources/db/migration/mariadb/V1000_10__fix_unique.sql
@@ -0,0 +1,74 @@
+# maimai2
+delete from maimai2_user_detail where aime_card_id is null;
+alter table maimai2_user_detail modify aime_card_id bigint not null;
+DELETE m
+FROM maimai2_user_detail m
+         JOIN (
+    SELECT MAX(id) as max_id, aime_card_id
+    FROM maimai2_user_detail
+    GROUP BY aime_card_id
+    HAVING COUNT(*) > 1
+) d ON m.aime_card_id = d.aime_card_id
+WHERE m.id < d.max_id;
+alter table maimai2_user_detail
+    add constraint maimai2_user_detail_pk unique (aime_card_id);
+
+# maimai
+delete from maimai_user_data where aime_card_id is null;
+alter table maimai_user_data modify aime_card_id bigint not null;
+DELETE m
+FROM maimai_user_data m
+         JOIN (
+    SELECT MAX(id) as max_id, aime_card_id
+    FROM maimai_user_data
+    GROUP BY aime_card_id
+    HAVING COUNT(*) > 1
+) d ON m.aime_card_id = d.aime_card_id
+WHERE m.id < d.max_id;
+alter table maimai_user_data
+    add constraint maimai_user_data_pk unique (aime_card_id);
+
+# chusan
+delete from chusan_user_data where card_id is null;
+alter table chusan_user_data modify card_id bigint not null;
+DELETE m
+FROM chusan_user_data m
+         JOIN (
+    SELECT MAX(id) as max_id, card_id
+    FROM chusan_user_data
+    GROUP BY card_id
+    HAVING COUNT(*) > 1
+) d ON m.card_id = d.card_id
+WHERE m.id < d.max_id;
+alter table chusan_user_data
+    add constraint chusan_user_data_pk unique (card_id);
+
+# chunithm
+delete from chuni_user_data where card_id is null;
+alter table chuni_user_data modify card_id bigint not null;
+DELETE m
+FROM chuni_user_data m
+         JOIN (
+    SELECT MAX(id) as max_id, card_id
+    FROM chuni_user_data
+    GROUP BY card_id
+    HAVING COUNT(*) > 1
+) d ON m.card_id = d.card_id
+WHERE m.id < d.max_id;
+alter table chuni_user_data
+    add constraint chuni_user_data_pk unique (card_id);
+
+# ongeki
+delete from ongeki_user_data where aime_card_id is null;
+alter table ongeki_user_data modify aime_card_id bigint not null;
+DELETE m
+FROM ongeki_user_data m
+         JOIN (
+    SELECT MAX(id) as max_id, aime_card_id
+    FROM ongeki_user_data
+    GROUP BY aime_card_id
+    HAVING COUNT(*) > 1
+) d ON m.aime_card_id = d.aime_card_id
+WHERE m.id < d.max_id;
+alter table ongeki_user_data
+    add constraint ongeki_user_data_pk unique (aime_card_id);