diff --git a/src/pt/opex/AndroidManifest.xml b/src/pt/opex/AndroidManifest.xml
new file mode 100644
index 000000000..30deb7f79
--- /dev/null
+++ b/src/pt/opex/AndroidManifest.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest package="eu.kanade.tachiyomi.extension" />
diff --git a/src/pt/opex/build.gradle b/src/pt/opex/build.gradle
new file mode 100644
index 000000000..bbcc58090
--- /dev/null
+++ b/src/pt/opex/build.gradle
@@ -0,0 +1,16 @@
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+
+ext {
+    extName = 'One Piece Ex'
+    pkgNameSuffix = 'pt.opex'
+    extClass = '.OnePieceEx'
+    extVersionCode = 1
+    libVersion = '1.2'
+}
+
+dependencies {
+    implementation project(':lib-ratelimit')
+}
+
+apply from: "$rootDir/common.gradle"
diff --git a/src/pt/opex/res/mipmap-hdpi/ic_launcher.png b/src/pt/opex/res/mipmap-hdpi/ic_launcher.png
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diff --git a/src/pt/opex/res/mipmap-mdpi/ic_launcher.png b/src/pt/opex/res/mipmap-mdpi/ic_launcher.png
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diff --git a/src/pt/opex/res/mipmap-xhdpi/ic_launcher.png b/src/pt/opex/res/mipmap-xhdpi/ic_launcher.png
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diff --git a/src/pt/opex/res/mipmap-xxxhdpi/ic_launcher.png b/src/pt/opex/res/mipmap-xxxhdpi/ic_launcher.png
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diff --git a/src/pt/opex/res/web_hi_res_512.png b/src/pt/opex/res/web_hi_res_512.png
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diff --git a/src/pt/opex/src/eu/kanade/tachiyomi/extension/pt/opex/OnePieceEx.kt b/src/pt/opex/src/eu/kanade/tachiyomi/extension/pt/opex/OnePieceEx.kt
new file mode 100644
index 000000000..2b4476304
--- /dev/null
+++ b/src/pt/opex/src/eu/kanade/tachiyomi/extension/pt/opex/OnePieceEx.kt
@@ -0,0 +1,239 @@
+package eu.kanade.tachiyomi.extension.pt.opex
+
+import com.github.salomonbrys.kotson.obj
+import com.github.salomonbrys.kotson.string
+import com.google.gson.JsonParser
+import eu.kanade.tachiyomi.lib.ratelimit.RateLimitInterceptor
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.source.model.FilterList
+import eu.kanade.tachiyomi.source.model.MangasPage
+import eu.kanade.tachiyomi.source.model.Page
+import eu.kanade.tachiyomi.source.model.SChapter
+import eu.kanade.tachiyomi.source.model.SManga
+import eu.kanade.tachiyomi.source.online.ParsedHttpSource
+import eu.kanade.tachiyomi.util.asJsoup
+import okhttp3.Headers
+import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+import org.jsoup.nodes.Document
+import org.jsoup.nodes.Element
+import rx.Observable
+import java.util.Locale
+import java.util.concurrent.TimeUnit
+
+class OnePieceEx : ParsedHttpSource() {
+
+    override val name = "One Piece Ex"
+
+    override val baseUrl = "https://onepieceex.net"
+
+    override val lang = "pt-BR"
+
+    override val supportsLatest = false
+
+    override val client: OkHttpClient = network.cloudflareClient.newBuilder()
+        .addInterceptor(RateLimitInterceptor(1, 1, TimeUnit.SECONDS))
+        .build()
+
+    override fun headersBuilder(): Headers.Builder = Headers.Builder()
+        .add("Accept", ACCEPT)
+        .add("Accept-Language", ACCEPT_LANGUAGE)
+        .add("Referer", "$baseUrl/mangas")
+
+    override fun popularMangaRequest(page: Int): Request = GET("$baseUrl/mangas", headers)
+
+    override fun popularMangaParse(response: Response): MangasPage {
+        val mangaPage = super.popularMangaParse(response)
+
+        val mainManga = SManga.create().apply {
+            title = "One Piece"
+            thumbnail_url = MAIN_SERIES_THUMBNAIL
+            url = "/mangas/?type=main"
+        }
+
+        val sbsManga = SManga.create().apply {
+            title = "SBS"
+            thumbnail_url = DEFAULT_THUMBNAIL
+            url = "/mangas/?type=sbs"
+        }
+
+        val allMangas = listOf(mainManga, sbsManga) + mangaPage.mangas.toMutableList()
+
+        return MangasPage(allMangas, mangaPage.hasNextPage)
+    }
+
+    override fun popularMangaSelector(): String = "#post > div.volume"
+
+    override fun popularMangaFromElement(element: Element): SManga = SManga.create().apply {
+        title = element.select("div.volume-nome h2").text() + " - " +
+            element.select("div.volume-nome h3").text()
+        thumbnail_url = THUMBNAIL_URL_MAP[title.toUpperCase(Locale.ROOT)] ?: DEFAULT_THUMBNAIL
+
+        val customUrl = "$baseUrl/mangas/".toHttpUrlOrNull()!!.newBuilder()
+            .addQueryParameter("type", "special")
+            .addQueryParameter("title", title)
+            .toString()
+
+        setUrlWithoutDomain(customUrl)
+    }
+
+    override fun popularMangaNextPageSelector(): String? = null
+
+    override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> {
+        return super.fetchSearchManga(page, query, filters)
+            .map { mangaPage ->
+                val filteredMangas = mangaPage.mangas.filter { m -> m.title.contains(query, true) }
+                MangasPage(filteredMangas, mangaPage.hasNextPage)
+            }
+    }
+
+    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request = popularMangaRequest(page)
+
+    override fun searchMangaParse(response: Response): MangasPage = popularMangaParse(response)
+
+    override fun searchMangaSelector() = popularMangaSelector()
+
+    override fun searchMangaFromElement(element: Element): SManga = popularMangaFromElement(element)
+
+    override fun searchMangaNextPageSelector(): String? = null
+
+    override fun mangaDetailsRequest(manga: SManga): Request {
+        val newHeaders = headersBuilder()
+            .set("Referer", "$baseUrl/")
+            .build()
+
+        return GET(baseUrl + manga.url, newHeaders)
+    }
+
+    override fun mangaDetailsParse(document: Document): SManga = SManga.create().apply {
+        val mangaUrl = document.location().toHttpUrlOrNull()!!
+
+        when (mangaUrl.queryParameter("type")!!) {
+            "main" -> {
+                title = "One Piece"
+                author = "Eiichiro Oda"
+                genre = "Ação, Aventura, Comédia, Fantasia, Superpoderes"
+                status = SManga.ONGOING
+                description = "Um romance marítimo pelo \"One Piece\"!!! Estamos na Grande " +
+                    "Era dos Piratas. Nela, muitos piratas lutam pelo tesouro deixado pelo " +
+                    "lendário Rei dos Piratas G. Roger, o \"One Piece\". Luffy, um garoto " +
+                    "que almeja ser pirata, embarca numa jornada com o sonho de se tornar " +
+                    "o Rei dos Piratas!!! (Fonte: MANGA Plus)"
+                thumbnail_url = MAIN_SERIES_THUMBNAIL
+            }
+            "sbs" -> {
+                title = "SBS"
+                author = "Eiichiro Oda"
+                description = "O SBS é uma coluna especial encontrada na maioria dos " +
+                    "tankobons da coleção, começando a partir do volume 4. É geralmente " +
+                    "formatada como uma coluna direta de perguntas e respostas, com o " +
+                    "Eiichiro Oda respondendo as cartas de fãs sobre uma grande variedade " +
+                    "de assuntos. (Fonte: One Piece Wiki)"
+                thumbnail_url = DEFAULT_THUMBNAIL
+            }
+            "special" -> {
+                title = mangaUrl.queryParameter("title")!!
+
+                val volumeEl = document.select("#post > div.volume:contains(" + title.substringAfter(" - ") + ")").first()!!
+                author = if (title.contains("One Piece")) "Eiichiro Oda" else "OPEX"
+                description = volumeEl.select("li.resenha").text()
+                thumbnail_url = THUMBNAIL_URL_MAP[title.toUpperCase(Locale.ROOT)] ?: DEFAULT_THUMBNAIL
+            }
+        }
+    }
+
+    override fun chapterListRequest(manga: SManga): Request = mangaDetailsRequest(manga)
+
+    override fun chapterListParse(response: Response): List<SChapter> {
+        val mangaUrl = response.request.url
+        val mangaType = mangaUrl.queryParameter("type")!!
+
+        val selectorComplement = when (mangaType) {
+            "main" -> "#volumes"
+            "sbs" -> "#volumes div.volume header:contains(SBS)"
+            else -> "#post > div.volume:contains(" + mangaUrl.queryParameter("title")!!.substringAfter(" - ") + ")"
+        }
+
+        val chapterListSelector = selectorComplement + (if (mangaType == "sbs") "" else " " + chapterListSelector())
+
+        return response.asJsoup()
+            .select(chapterListSelector)
+            .map(::chapterFromElement)
+            .reversed()
+    }
+
+    override fun chapterListSelector() = "div.capitulos li.volume-capitulo"
+
+    override fun chapterFromElement(element: Element): SChapter = SChapter.create().apply {
+        val mangaUrl = element.ownerDocument().location().toHttpUrlOrNull()!!
+
+        when (mangaUrl.queryParameter("type")!!) {
+            "main" -> {
+                name = element.select("span").first()!!.text()
+                setUrlWithoutDomain(element.select("a.online").first()!!.attr("abs:href"))
+            }
+            "sbs" -> {
+                name = element.select("div.volume-nome h2").first()!!.text()
+                setUrlWithoutDomain(element.select("header p.extra a:contains(SBS)").first()!!.attr("abs:href"))
+            }
+            "special" -> {
+                name = element.ownText()
+                setUrlWithoutDomain(element.select("a.online").first()!!.attr("abs:href"))
+            }
+        }
+
+        scanlator = this@OnePieceEx.name
+    }
+
+    override fun pageListParse(document: Document): List<Page> {
+        return document.select("script:containsData(paginasLista)").first()!!
+            .data()
+            .substringAfter("paginasLista = \"")
+            .substringBefore("\";")
+            .replace("\\\"", "\"")
+            .replace("\\\\\\/", "/")
+            .replace("//", "/")
+            .let { JsonParser.parseString(it).obj }
+            .entrySet()
+            .mapIndexed { i, entry ->
+                Page(i, document.location(), "$baseUrl/${entry.value.string}")
+            }
+    }
+
+    override fun imageUrlParse(document: Document) = ""
+
+    override fun imageRequest(page: Page): Request {
+        val newHeaders = headersBuilder()
+            .set("Accept", ACCEPT_IMAGE)
+            .set("Referer", page.url)
+            .build()
+
+        return GET(page.imageUrl!!, newHeaders)
+    }
+
+    override fun latestUpdatesRequest(page: Int): Request = throw UnsupportedOperationException("Not used")
+
+    override fun latestUpdatesSelector() = throw UnsupportedOperationException("Not used")
+
+    override fun latestUpdatesFromElement(element: Element): SManga = throw UnsupportedOperationException("Not used")
+
+    override fun latestUpdatesNextPageSelector() = throw UnsupportedOperationException("Not used")
+
+    companion object {
+        private const val ACCEPT = "text/html,application/xhtml+xml,application/xml;q=0.9," +
+            "image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9"
+        private const val ACCEPT_IMAGE = "image/webp,image/apng,image/*,*/*;q=0.8"
+        private const val ACCEPT_LANGUAGE = "pt-BR,pt;q=0.9,en-US;q=0.8,en;q=0.7,es;q=0.6,gl;q=0.5"
+
+        private const val DEFAULT_THUMBNAIL = "https://onepieceex.net/mangareader/sbs/capa/preview/nao.jpg"
+        private const val MAIN_SERIES_THUMBNAIL = "https://onepieceex.net/mangareader/sbs/capa/preview/Volume_1.jpg"
+        private val THUMBNAIL_URL_MAP = mapOf(
+            "OPEX - DENSETSU NO SEKAI" to "https://onepieceex.net/mangareader/especiais/501/00.jpg",
+            "OPEX - ESPECIAIS" to "https://onepieceex.net/mangareader/especiais/27/00.jpg",
+            "ONE PIECE - ESPECIAIS DE ONE PIECE" to "https://onepieceex.net/mangareader/especiais/5/002.png",
+            "ONE PIECE - HISTÓRIAS DE CAPA" to "https://onepieceex.net/mangareader/mangas/428/00_c.jpg"
+        )
+    }
+}