diff --git a/readme-en.md b/readme-en.md
index edbc32b..5e63882 100644
--- a/readme-en.md
+++ b/readme-en.md
@@ -23,13 +23,14 @@ https://qiita.com/site_u/items/b6d5097f5e3a0f91c95d
 - `dslite.v6connect.net`
     - ASAHIネット光
 ## MAP-E:
-- `BIGLOBE`
+- `BIGLOBE`（西日本　テスト済）
 - `JPNE（v6プラス）`
     - DMM光
     - GMOとくとくBB
     - enひかり
     - ic-net光コース
     - おてがる光
+    - So-net
     - ぷらら（Sコース）(R.I.P.)
 - `OCN` (R.I.P.)
 - `NURO`
diff --git a/readme-zhs.md b/readme-zhs.md
index 10d3b24..96ccdb6 100644
--- a/readme-zhs.md
+++ b/readme-zhs.md
@@ -24,13 +24,14 @@ https://qiita.com/site_u/items/b6d5097f5e3a0f91c95d
 - `dslite.v6connect.net`
     - ASAHIネット光
 ## MAP-E:
-- `BIGLOBE`
+- `BIGLOBE`（西日本　テスト済）
 - `JPNE（v6プラス）`
     - DMM光
     - GMOとくとくBB
     - enひかり
     - ic-net光コース
     - おてがる光
+    - So-net
     - ぷらら（Sコース）(R.I.P.)
 - `OCN` (R.I.P.)
 - `NURO`
diff --git a/readme.md b/readme.md
index b6a6797..aede949 100644
--- a/readme.md
+++ b/readme.md
@@ -26,13 +26,14 @@ https://qiita.com/site_u/items/b6d5097f5e3a0f91c95d
 - `dslite.v6connect.net`
     - ASAHIネット光
 ## MAP-E:
-- `BIGLOBE`
+- `BIGLOBE`（西日本　テスト済）
 - `JPNE（v6プラス）`
     - DMM光
     - GMOとくとくBB
     - enひかり
     - ic-net光コース
     - おてがる光
+    - So-net
     - ぷらら（Sコース）(R.I.P.)
 - `OCN` (R.I.P.)
 - `NURO`
diff --git a/root/usr/sbin/fleth b/root/usr/sbin/fleth
index eb221fb..3c7f2db 100755
--- a/root/usr/sbin/fleth
+++ b/root/usr/sbin/fleth
@@ -306,4 +306,25 @@ elif [ "$h_IP6PREFIX_ENABLED" -eq 1 ] && [ "$1" = "ip6prefix" ]; then
     if [ $TRIES -ge $MAX_TRIES ]; then
         logger -t fleth "Failed to obtain a valid IPv6 address after $MAX_TRIES attempts."
     fi
+else
+    echo "Flet'h by huggy"
+    echo "Flet'h is a helper that can configure your IPv4 over IPv6 tunnel automatically."
+    echo ""
+    echo "Usage: $0 {auto|ip6prefix|status|mape_status|get_area|get_dslite_provider|hook_none.js|restore_none.js}"
+    echo "auto                Automatically configure the network settings based on current state and config."
+    echo "status              Show the current area and DS-Lite AFTR domain."
+    echo "ip6prefix           Handle the IPv6 prefix process."
+    echo "mape_status         Show the current MAP-E provider details."
+    echo "get_area            Show the current area information."
+    echo "get_dslite_provider Show the current DS-Lite provider details."
+    echo "hook_none.js        Install the fleth hook in none.js to hook port-forward page."
+    echo "restore_none.js     Restore the none.js to its default state."
+    echo ""
+    echo "To modify settings, use:"
+    echo "uci show fleth.global"
+    echo "uci set fleth.global.enabled=1"
+    echo "uci commit"
+    echo ""
+    echo "For more details, consult the documentation:"
+    echo "https://fleth.huggy.moe/"
 fi