diff --git a/Database/Junk/HashTable.hs b/Database/Junk/HashTable.hs
new file mode 100644
--- /dev/null
+++ b/Database/Junk/HashTable.hs
@@ -0,0 +1,22 @@
+{-# LANGUAGE TypeFamilies, RankNTypes,TypeSynonymInstances, MultiParamTypeClasses,FlexibleInstances #-}
+module Database.Junk.HashTable (HT (..)) where
+
+import Control.Monad.Trans (lift)
+import qualified Data.Hashable as HS (Hashable)
+import qualified Data.HashTable.Class as H (HashTable)
+import qualified Data.HashTable.IO as H
+import Data.Conduit (yield, ($=))
+import qualified Data.Conduit.List as C (concatMapM)
+
+import Database.KVS
+
+newtype HT h k v = HT { unHT :: H.IOHashTable h k v }
+
+instance (Eq k, H.HashTable h, HS.Hashable k) => KVS (HT h k v) IO k v where
+  insert = H.insert . unHT
+  accept c k f g = H.lookup (unHT c) k >>= maybe f g
+  delete (HT ht) k = H.delete ht k >> return Nothing
+
+instance (Eq k, H.HashTable h, HS.Hashable k) => EnumeratableKVS (HT h k v) IO k v where
+  elemsWithKey (HT c) = yield c $= C.concatMapM (lift . H.toList)
+
diff --git a/JunkDB-driver-hashtables.cabal b/JunkDB-driver-hashtables.cabal
new file mode 100644
--- /dev/null
+++ b/JunkDB-driver-hashtables.cabal
@@ -0,0 +1,48 @@
+-- Initial JunkDB.cabal generated by cabal init.  For further 
+-- documentation, see http://haskell.org/cabal/users-guide/
+
+name:                JunkDB-driver-hashtables
+version:             0.1.0.0
+-- synopsis:            
+description:         Generic KVS API
+license:             BSD3
+license-file:        LICENSE
+author:              HATTORI, Hiroki
+maintainer:          seagull.kamome@gmail.com
+-- copyright:           
+category:            Database
+build-type:          Simple
+cabal-version:       >=1.8
+
+source-repository head
+  type:                git
+  location:            https://github.com/seagull-kamome/JunkDB
+
+library
+  exposed-modules:     Database.Junk.HashTable
+  ghc-options:         -Wall
+  build-depends:       base ==4.6.*,
+                       JunkDB ==0.1.*,
+                       mtl ==2.1.*,
+                       bytestring ==0.10.*,
+                       conduit ==1.0.*,
+                       hashable >=1.1.2.0,
+                       hashtables ==1.1.*,
+                       resourcet ==0.4.*
+
+-- test-suite spec
+--  type:                exitcode-stdio-1.0
+--  ghc-options:         -Wall -lgdbm
+--  hs-source-dirs:      test/
+--  main-is:             test.hs
+--  build-depends:       base,
+--                       mtl ==2.1.*,
+--                       directory ==1.2.*,
+--                       text,
+--                       hspec,
+--                       JunkDB,
+--                       hashable ==1.2.*,
+--                       hashtables ==1.1.*,
+--                       resourcet ==0.4.*,
+--                       conduit ==1.0.*,
+--                       HUnit ==1.2.*
diff --git a/LICENSE b/LICENSE
new file mode 100644
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,30 @@
+Copyright (c) 2013, HATTORI, Hiroki
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of HATTORI, Hiroki nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain