diff --git a/hwe/sammo/Auction.php b/hwe/sammo/Auction.php
new file mode 100644
index 00000000..78169f1e
--- /dev/null
+++ b/hwe/sammo/Auction.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace sammo;
+
+use Ds\Map;
+use sammo\DTO\AuctionInfo;
+
+class Auction
+{
+
+  private AuctionInfo $info;
+  public const LAST_AUCTION_ID_KEY = 'last_auction_id';
+
+  static public function genNextAuctionID(): int
+  {
+    $db = DB::db();
+
+    $gameStor = KVStorage::getStorage($db, 'game_env');
+    $gameStor->invalidateCacheValue(self::LAST_AUCTION_ID_KEY);
+    $auctionID = ($gameStor->getValue(self::LAST_AUCTION_ID_KEY) ?? 0) + 1;
+
+    $gameStor->setValue(self::LAST_AUCTION_ID_KEY, $auctionID);
+
+    return $auctionID;
+  }
+
+
+  static public function openAuction(AuctionInfo $info)
+  {
+    $db = DB::db();
+    $auctionID = $info->id;
+    $auctionStor = KVStorage::getStorage($db, 'auction');
+    $auctionStor->setValue("id_{$auctionID}", $info->toArray());
+  }
+
+  public function __construct(private readonly int $auctionID)
+  {
+    $db = DB::db();
+    $auctionStor = KVStorage::getStorage($db, 'auction');
+    $rawBettingInfo = $auctionStor->getValue("id_{$auctionID}");
+    if ($rawBettingInfo === null) {
+      throw new \RuntimeException("해당 경매가 없습니다: {$auctionID}");
+    }
+    $this->info = new AuctionInfo($rawBettingInfo);
+  }
+}
diff --git a/hwe/sammo/DTO/AuctionBidItem.php b/hwe/sammo/DTO/AuctionBidItem.php
new file mode 100644
index 00000000..185cc37a
--- /dev/null
+++ b/hwe/sammo/DTO/AuctionBidItem.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace sammo\DTO;
+
+use sammo\Json;
+use Spatie\DataTransferObject\DataTransferObject;
+use Spatie\DataTransferObject\Attributes\MapFrom;
+use Spatie\DataTransferObject\Attributes\MapTo;
+
+class AuctionBidItem  extends DataTransferObject{
+  public int $id;
+  #[MapFrom('auction_id')]
+  #[MapTo('auction_id')]
+  public int $auctionID;
+  public ?int $owner;
+
+  #[MapFrom('general_id')]
+  #[MapTo('general_id')]
+  public int $generalID;
+
+  public int $amount;
+
+  public string $date;
+  public AuctionBidItemData $data;
+
+  public static function parse(array $data): self
+  {
+    $data['data'] = Json::decode($data['data']);
+    return new self($data);
+  }
+
+  public function toArray(): array
+  {
+    $result = parent::toArray();
+    $result['data'] = Json::encode($this->data);
+    return $result;
+  }
+}
\ No newline at end of file
diff --git a/hwe/sammo/DTO/AuctionBidItemData.php b/hwe/sammo/DTO/AuctionBidItemData.php
new file mode 100644
index 00000000..5d065ddb
--- /dev/null
+++ b/hwe/sammo/DTO/AuctionBidItemData.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace sammo\DTO;
+
+use Spatie\DataTransferObject\DataTransferObject;
+
+class AuctionBidItemData  extends DataTransferObject{
+  public string $ownerName;
+  public string $generalName;
+}
\ No newline at end of file
diff --git a/hwe/sammo/DTO/AuctionInfo.php b/hwe/sammo/DTO/AuctionInfo.php
new file mode 100644
index 00000000..7f2b5ff5
--- /dev/null
+++ b/hwe/sammo/DTO/AuctionInfo.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace sammo\DTO;
+
+use Spatie\DataTransferObject\Attributes\CastWith;
+use Spatie\DataTransferObject\Attributes\Strict;
+use Spatie\DataTransferObject\DataTransferObject;
+
+use sammo\Enums\ResourceType;
+use sammo\DTO\Caster\BackedEnumCaster;
+
+//https://json2dto.atymic.dev/
+
+
+
+#[Strict]
+class AuctionInfo extends DataTransferObject
+{
+	public int $id;
+  public int $openerName;
+  public int $openerGeneralID;
+  public string $type;
+	public bool $finished;
+  #[CastWith(BackedEnumCaster::class)]
+	public ResourceType $reqResource;
+	public string $openDate;
+	public string $closeDate;
+}
diff --git a/hwe/sammo/Enums/ResourceType.php b/hwe/sammo/Enums/ResourceType.php
new file mode 100644
index 00000000..d24481d0
--- /dev/null
+++ b/hwe/sammo/Enums/ResourceType.php
@@ -0,0 +1,9 @@
+<?php
+namespace sammo\Enums;
+
+enum ResourceType: string
+{
+  case gold = 'gold';
+  case rice = 'rice';
+  case inheritancePoint = 'inheritancePoint';
+}