diff --git a/common/defs/bitcoin/omotenashicoin.json b/common/defs/bitcoin/omotenashicoin.json
new file mode 100644
index 000000000..4e0025253
--- /dev/null
+++ b/common/defs/bitcoin/omotenashicoin.json
@@ -0,0 +1,45 @@
+{
+  "coin_name": "OmotenashiCoin",
+  "coin_shortcut": "MTNS",
+  "coin_label": "OmotenashiCoin",
+  "website": "https://www.omotenashicoin.site",
+  "github": "https://github.com/omotenashicoin-project/OmotenashiCoin",
+  "maintainer": "nakkie <git@omotenashiocin.site>",
+  "curve_name": "secp256k1",
+  "address_type": 63,
+  "address_type_p2sh": 18,
+  "maxfee_kb": 100000,
+  "minfee_kb": 100,
+  "signed_message_header": "MtnsNet Signed Message:\n",
+  "hash_genesis_block": "00000e04317329056e236da90ebbd1cafacf2cbe1337509231289677cec3f192",
+  "xprv_magic": 61052378,
+  "xpub_magic": 61052245,
+  "xpub_magic_segwit_p2sh": null,
+  "xpub_magic_segwit_native": null,
+  "bech32_prefix": null,
+  "cashaddr_prefix": null,
+  "slip44": 341,
+  "segwit": false,
+  "decred": false,
+  "fork_id": null,
+  "force_bip143": false,
+  "bip115": false,
+  "default_fee_b": {
+    "Normal": 10
+  },
+  "dust_limit": 546,
+  "blocktime_seconds": 90,
+  "uri_prefix": "omotenashicoin",
+  "min_address_length": 27,
+  "max_address_length": 34,
+  "bitcore": [
+    "https://mtns.hashexplorer.net:8015"
+  ],
+  "blockbook": [
+    "https://mtns.hashexplorer.net"
+  ],
+  "negative_fee": false,
+  "cooldown": 100,
+  "consensus_branch_id": null,
+  "confidential_assets": null
+}
diff --git a/common/defs/bitcoin/omotenashicoin.png b/common/defs/bitcoin/omotenashicoin.png
new file mode 100644
index 000000000..ac8eee7b0
Binary files /dev/null and b/common/defs/bitcoin/omotenashicoin.png differ
diff --git a/common/defs/coins_details.json b/common/defs/coins_details.json
index 8bef74f80..7a843f9e1 100644
--- a/common/defs/coins_details.json
+++ b/common/defs/coins_details.json
@@ -29707,4 +29707,4 @@
         "updated_at": 1564140094,
         "updated_at_readable": "Fri Jul 26 13:21:34 2019"
     }
-}
\ No newline at end of file
+}
diff --git a/common/defs/support.json b/common/defs/support.json
index 509a094bc..55623ce58 100644
--- a/common/defs/support.json
+++ b/common/defs/support.json
@@ -154,6 +154,7 @@
       "bitcoin:ZEC": "1.7.1",
       "bitcoin:ZEL": "1.8.3",
       "bitcoin:ZNY": "1.8.2",
+      "bitcoin:MTNS": "1.8.3",
       "bitcoin:tDASH": "1.6.2",
       "bitcoin:tGRS": "1.6.2",
       "bitcoin:tLTC": "1.6.2",
@@ -1514,6 +1515,7 @@
       "bitcoin:ZEL": "2.1.4",
       "bitcoin:ZEN": "2.0.8",
       "bitcoin:ZNY": "2.1.1",
+      "bitcoin:MTNS": "2.1.5",
       "bitcoin:tDASH": "2.0.8",
       "bitcoin:tGRS": "2.0.8",
       "bitcoin:tLTC": "2.0.7",
diff --git a/core/src/apps/common/coininfo.py b/core/src/apps/common/coininfo.py
index 08e8f72d3..5394ff8d5 100644
--- a/core/src/apps/common/coininfo.py
+++ b/core/src/apps/common/coininfo.py
@@ -1158,6 +1158,29 @@ def by_name(name: str) -> CoinInfo:
             curve_name='secp256k1',
             confidential_assets=None,
         )
+    elif name == "OmotenashiCoin":
+        return CoinInfo(
+            coin_name=name,
+            coin_shortcut="MTNS",
+            address_type=63,
+            address_type_p2sh=18,
+            maxfee_kb=100000,
+            signed_message_header="MtnsNet Signed Message:\n",
+            xpub_magic=0x03a39555,
+            xpub_magic_segwit_p2sh=None,
+            xpub_magic_segwit_native=None,
+            bech32_prefix=None,
+            cashaddr_prefix=None,
+            slip44=341,
+            segwit=False,
+            fork_id=None,
+            force_bip143=False,
+            bip115=False,
+            decred=False,
+            negative_fee=False,
+            curve_name='secp256k1',
+            confidential_assets=None,
+        )
     elif name == "PIVX":
         return CoinInfo(
             coin_name=name,