diff --git a/kmk/extensions/keymap_extras/keymap_jp.py b/kmk/extensions/keymap_extras/keymap_jp.py
new file mode 100755
index 0000000..80bbcb0
--- /dev/null
+++ b/kmk/extensions/keymap_extras/keymap_jp.py
@@ -0,0 +1,158 @@
+# What's this?　
+# This is a keycode conversion script. With this, KMK will work as a JIS keyboard.
+
+# Usage
+# ```python
+# from kmk.extensions.keymap_extras.keymap_jp import JP
+# keyboard.keymap = [ ... JP.AT ... ]
+# ```
+
+# Credit
+#  Proted from keymap_jp.h on QMK
+#  https://github.com/qmk/qmk_firmware/blob/master/quantum/keymap_extras/keymap_jp.h
+
+'''
+/* Copyright 2016 h-youhei
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http:#www.gnu.org/licenses/>.
+ *
+ * JP106-layout (Japanese Standard)
+ *
+ * For more information, see
+ * http://www2d.biglobe.ne.jp/~msyk/keyboard/layout/usbkeycode.html
+ * note: This website is written in Japanese.
+ */
+'''
+
+from kmk.keys import KC
+
+class JP:
+
+    '''
+    /*
+     * ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐
+     * │Z↔︎H│ 1 │ 2 │ 3 │ 4 │ 5 │ 6 │ 7 │ 8 │ 9 │ 0 │ - │ ^ │ ¥ │   │
+     * ├───┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴───┤
+     * │     │ Q │ W │ E │ R │ T │ Y │ U │ I │ O │ P │ @ │ [ │     │
+     * ├─────┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┐    │
+     * │ Eisū │ A │ S │ D │ F │ G │ H │ J │ K │ L │ ; │ : │ ] │    │
+     * ├──────┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴────┤
+     * │        │ Z │ X │ C │ V │ B │ N │ M │ , │ . │ / │ \ │      │
+     * ├─────┬──┴┬──┴──┬┴───┴┬──┴───┴──┬┴───┴┬──┴┬──┴┬──┴┬──┴┬─────┤
+     * │     │   │     │Muhen│         │ Hen │K↔H│   │   │   │     │
+     * └─────┴───┴─────┴─────┴─────────┴─────┴───┴───┴───┴───┴─────┘
+     */
+    '''
+
+    #FRow 1
+    ZKHK = KC.GRV  # Zenkaku ↔︎ Hankaku ↔ Kanji (半角 ↔ 全角 ↔ 漢字)
+    N1    = KC.N1    # 1
+    N2    = KC.N2    # 2
+    N3    = KC.N3    # 3
+    N4    = KC.N4    # 4
+    N5    = KC.N5    # 5
+    N6    = KC.N6    # 6
+    N7    = KC.N7    # 7
+    N8    = KC.N8    # 8
+    N9    = KC.N9    # 9
+    N0    = KC.N0    # 0
+    MINS = KC.MINS # -
+    CIRC = KC.EQL  # ^
+    YEN  = KC.INT3 # ¥
+    # Row 2
+    Q    = KC.Q    # Q
+    W    = KC.W    # W
+    E    = KC.E    # E
+    R    = KC.R    # R
+    T    = KC.T    # T
+    Y    = KC.Y    # Y
+    U    = KC.U    # U
+    I    = KC.I    # I
+    O    = KC.O    # O
+    P    = KC.P    # P
+    AT   = KC.LBRC # @
+    LBRC = KC.RBRC # [
+    # Row 3
+    EISU = KC.CAPS # Eisū (英数)
+    A    = KC.A    # A
+    S    = KC.S    # S
+    D    = KC.D    # D
+    F    = KC.F    # F
+    G    = KC.G    # G
+    H    = KC.H    # H
+    J    = KC.J    # J
+    K    = KC.K    # K
+    L    = KC.L    # L
+    SCLN = KC.SCLN # ;
+    COLN = KC.QUOT # :
+    RBRC = KC.NUHS # ]
+    # Row 4
+    Z    = KC.Z    # Z
+    X    = KC.X    # X
+    C    = KC.C    # C
+    V    = KC.V    # V
+    B    = KC.B    # B
+    N    = KC.N    # N
+    M    = KC.M    # M
+    COMM = KC.COMM # ,
+    DOT  = KC.DOT  # .
+    SLSH = KC.SLSH # /
+    BSLS = KC.INT1 # (backslash)
+    # Row 5
+    MHEN = KC.INT5 # Muhenkan (無変換)
+    HENK = KC.INT4 # Henkan (変換)
+    KANA = KC.INT2 # Katakana ↔ Hiragana ↔ Rōmaji (カタカナ ↔ ひらがな ↔ ローマ字)
+
+    '''
+    /* Shifted symbols
+     * ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐
+     * │   │ ! │ " │ # │ $ │ % │ & │ ' │ ( │ ) │   │ = │ ~ │ | │   │
+     * ├───┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴───┤
+     * │     │   │   │   │   │   │   │   │   │   │   │ ` │ { │     │
+     * ├─────┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┐    │
+     * │ Caps │   │   │   │   │   │   │   │   │   │ + │ * │ } │    │
+     * ├──────┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴────┤
+     * │        │   │   │   │   │   │   │   │ < │ > │ ? │ _ │      │
+     * ├─────┬──┴┬──┴──┬┴───┴┬──┴───┴──┬┴───┴┬──┴┬──┴┬──┴┬──┴┬─────┤
+     * │     │   │     │     │         │     │   │   │   │   │     │
+     * └─────┴───┴─────┴─────┴─────────┴─────┴───┴───┴───┴───┴─────┘
+     */
+    '''
+
+    # Row 1
+    EXLM = KC.LSFT(N1)    # !
+    DQUO = KC.LSFT(N2)    # "
+    HASH = KC.LSFT(N3)    # #
+    DLR  = KC.LSFT(N4)    # $
+    PERC = KC.LSFT(N5)    # %
+    AMPR = KC.LSFT(N6)    # &
+    QUOT = KC.LSFT(N7)    # '
+    LPRN = KC.LSFT(N8)    # (
+    RPRN = KC.LSFT(N9)    # )
+    EQL  = KC.LSFT(MINS) # =
+    TILD = KC.LSFT(CIRC) # ~
+    PIPE = KC.LSFT(YEN)  # |
+    # Row 2
+    GRV  = KC.LSFT(AT)   # `
+    LCBR = KC.LSFT(LBRC) # {
+    # Row 3
+    CAPS = KC.LSFT(EISU) # Caps Lock
+    PLUS = KC.LSFT(SCLN) # +
+    ASTR = KC.LSFT(COLN) # *
+    RCBR = KC.LSFT(RBRC) # }
+    # Row 4
+    LABK = KC.LSFT(COMM) # <
+    RABK = KC.LSFT(DOT)  # >
+    QUES = KC.LSFT(SLSH) # ?
+    UNDS = KC.LSFT(BSLS) # _