diff --git a/src/database/prepare.py b/src/database/prepare.py
new file mode 100644
index 0000000..5891c90
--- /dev/null
+++ b/src/database/prepare.py
@@ -0,0 +1,39 @@
+import mariadb
+
+
+def _create_tables(con: mariadb.Connection) -> None:
+    cursor = con.cursor()
+    cursor.execute(
+        """CREATE TABLE IF NOT EXISTS master_pass (user_id INT,
+                        salt BINARY(64),
+                        PASSWD BINARY(64),
+                        PRIMARY KEY(user_id)
+                        )"""
+    )
+    cursor.execute(
+        """CREATE TABLE IF NOT EXISTS accounts(user_id INT,
+                        acc_name VARCHAR(255),
+                        salt BINARY(64),
+                        enc_login BINARY(64),
+                        enc_pass BINARY(64),
+                        UNIQUE(acc_name, user_id)
+                        )"""
+    )
+    cursor.close()
+
+
+def _create_index(con: mariadb.Connection) -> None:
+    cursor = con.cursor()
+    cursor.execute(
+        """CREATE INDEX IF NOT EXISTS user_id_to_acc on accounts(user_id)
+    """
+    )
+
+
+def prepare(host: int, user: str, passwd: str, database: str) -> None:
+    con: mariadb.Connection = mariadb.connect(
+        host=host, user=user, password=passwd, database=database
+    )
+    _create_tables(con)
+    _create_index(con)
+    con.close()