diff --git a/src/th/mangastep/build.gradle b/src/th/mangastep/build.gradle
new file mode 100644
index 000000000..caa332af8
--- /dev/null
+++ b/src/th/mangastep/build.gradle
@@ -0,0 +1,10 @@
+ext {
+    extName = 'Mangastep'
+    extClass = '.Mangastep'
+    themePkg = 'mangathemesia'
+    baseUrl = 'https://mangastep.com'
+    overrideVersionCode = 0
+    isNsfw = true
+}
+
+apply from: "$rootDir/common.gradle"
diff --git a/src/th/mangastep/res/mipmap-hdpi/ic_launcher.png b/src/th/mangastep/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 000000000..12b78b2c7
Binary files /dev/null and b/src/th/mangastep/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/src/th/mangastep/res/mipmap-mdpi/ic_launcher.png b/src/th/mangastep/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 000000000..2ebd7add2
Binary files /dev/null and b/src/th/mangastep/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/src/th/mangastep/res/mipmap-xhdpi/ic_launcher.png b/src/th/mangastep/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 000000000..4dd74dc1c
Binary files /dev/null and b/src/th/mangastep/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/src/th/mangastep/res/mipmap-xxhdpi/ic_launcher.png b/src/th/mangastep/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 000000000..f70399b5b
Binary files /dev/null and b/src/th/mangastep/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/src/th/mangastep/res/mipmap-xxxhdpi/ic_launcher.png b/src/th/mangastep/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 000000000..1626d1dd6
Binary files /dev/null and b/src/th/mangastep/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/src/th/mangastep/src/eu/kanade/tachiyomi/extension/th/mangastep/Mangastep.kt b/src/th/mangastep/src/eu/kanade/tachiyomi/extension/th/mangastep/Mangastep.kt
new file mode 100644
index 000000000..514a83f81
--- /dev/null
+++ b/src/th/mangastep/src/eu/kanade/tachiyomi/extension/th/mangastep/Mangastep.kt
@@ -0,0 +1,12 @@
+package eu.kanade.tachiyomi.extension.th.mangastep
+
+import eu.kanade.tachiyomi.multisrc.mangathemesia.MangaThemesia
+import java.text.SimpleDateFormat
+import java.util.Locale
+
+class Mangastep : MangaThemesia(
+    "Mangastep",
+    "https://mangastep.com",
+    "th",
+    dateFormat = SimpleDateFormat("MMMM d, yyyy", Locale("th")),
+)