diff --git a/src/pt/mundomangakun/AndroidManifest.xml b/src/pt/mundomangakun/AndroidManifest.xml
new file mode 100644
index 000000000..30deb7f79
--- /dev/null
+++ b/src/pt/mundomangakun/AndroidManifest.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest package="eu.kanade.tachiyomi.extension" />
diff --git a/src/pt/mundomangakun/build.gradle b/src/pt/mundomangakun/build.gradle
new file mode 100644
index 000000000..e66c277ac
--- /dev/null
+++ b/src/pt/mundomangakun/build.gradle
@@ -0,0 +1,18 @@
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlinx-serialization'
+
+ext {
+    extName = 'Mundo Mangá-Kun'
+    pkgNameSuffix = 'pt.mundomangakun'
+    extClass = '.MundoMangaKun'
+    extVersionCode = 6
+    libVersion = '1.2'
+    containsNsfw = true
+}
+
+dependencies {
+    implementation project(':lib-ratelimit')
+}
+
+apply from: "$rootDir/common.gradle"
diff --git a/src/pt/mundomangakun/res/mipmap-hdpi/ic_launcher.png b/src/pt/mundomangakun/res/mipmap-hdpi/ic_launcher.png
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diff --git a/src/pt/mundomangakun/res/mipmap-mdpi/ic_launcher.png b/src/pt/mundomangakun/res/mipmap-mdpi/ic_launcher.png
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diff --git a/src/pt/mundomangakun/res/mipmap-xhdpi/ic_launcher.png b/src/pt/mundomangakun/res/mipmap-xhdpi/ic_launcher.png
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diff --git a/src/pt/mundomangakun/res/mipmap-xxhdpi/ic_launcher.png b/src/pt/mundomangakun/res/mipmap-xxhdpi/ic_launcher.png
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diff --git a/src/pt/mundomangakun/res/mipmap-xxxhdpi/ic_launcher.png b/src/pt/mundomangakun/res/mipmap-xxxhdpi/ic_launcher.png
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diff --git a/src/pt/mundomangakun/res/web_hi_res_512.png b/src/pt/mundomangakun/res/web_hi_res_512.png
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diff --git a/src/pt/mundomangakun/src/eu/kanade/tachiyomi/extension/pt/mundomangakun/MundoMangaKun.kt b/src/pt/mundomangakun/src/eu/kanade/tachiyomi/extension/pt/mundomangakun/MundoMangaKun.kt
new file mode 100644
index 000000000..ea3a3c192
--- /dev/null
+++ b/src/pt/mundomangakun/src/eu/kanade/tachiyomi/extension/pt/mundomangakun/MundoMangaKun.kt
@@ -0,0 +1,247 @@
+package eu.kanade.tachiyomi.extension.pt.mundomangakun
+
+import eu.kanade.tachiyomi.annotations.Nsfw
+import eu.kanade.tachiyomi.lib.ratelimit.RateLimitInterceptor
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.source.model.Filter
+import eu.kanade.tachiyomi.source.model.FilterList
+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 kotlinx.serialization.json.Json
+import kotlinx.serialization.json.jsonArray
+import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.jsonPrimitive
+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 uy.kohesive.injekt.injectLazy
+import java.util.concurrent.TimeUnit
+
+@Nsfw
+class MundoMangaKun : ParsedHttpSource() {
+
+    override val name = "Mundo Mangá-Kun"
+
+    override val baseUrl = "https://mundomangakun.com.br"
+
+    override val lang = "pt-BR"
+
+    override val supportsLatest = false
+
+    override val client: OkHttpClient = network.client.newBuilder()
+        .addInterceptor(RateLimitInterceptor(1, 3, TimeUnit.SECONDS))
+        .build()
+
+    override fun headersBuilder(): Headers.Builder = Headers.Builder()
+        .add("User-Agent", USER_AGENT)
+        .add("Origin", baseUrl)
+        .add("Referer", baseUrl)
+
+    private val json: Json by injectLazy()
+
+    override fun popularMangaRequest(page: Int): Request {
+        val refererPath = if (page <= 2) "" else "/leitor-online/${page - 1}"
+        val newHeaders = headersBuilder()
+            .set("Referer", baseUrl + refererPath)
+            .build()
+
+        val pageStr = if (page != 1) "/page/$page" else ""
+        return GET("$baseUrl/leitor-online$pageStr", newHeaders)
+    }
+
+    override fun popularMangaSelector(): String = "div.leitor_online_container article.manga_item"
+
+    override fun popularMangaFromElement(element: Element): SManga = SManga.create().apply {
+        title = element.select("h2.titulo_manga_item").text()
+        thumbnail_url = element.select("div.container_imagem").attr("style")
+            .substringAfter("url(")
+            .substringBefore(");")
+        setUrlWithoutDomain(element.select("h2.titulo_manga_item a").attr("href"))
+    }
+
+    override fun popularMangaNextPageSelector() = "div.paginacao a.next.page-numbers"
+
+    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
+        val refererPage = if (page <= 2) "" else "page/${page - 1}"
+        val newHeaders = headersBuilder()
+            .set("Referer", "$baseUrl/leitor-online/$refererPage")
+            .build()
+
+        val pagePath = if (page != 1) "page/$page/" else ""
+        val url = "$baseUrl/leitor-online/$pagePath".toHttpUrlOrNull()!!.newBuilder()
+            .addQueryParameter("leitor_titulo_projeto", query)
+
+        filters.forEach { filter ->
+            when (filter) {
+                is GenreFilter -> {
+                    url.addQueryParameter("leitor_genero_projeto", filter.selected.value)
+                }
+                is StatusFilter -> {
+                    url.addQueryParameter("leitor_status_projeto", filter.selected.value)
+                }
+                is SortFilter -> {
+                    val order = if (filter.state!!.ascending) "ASC" else "DESC"
+                    url.addQueryParameter("leitor_ordem_projeto", order)
+                }
+            }
+        }
+
+        return GET(url.toString(), newHeaders)
+    }
+
+    override fun searchMangaSelector() = popularMangaSelector()
+
+    override fun searchMangaFromElement(element: Element): SManga = popularMangaFromElement(element)
+
+    override fun searchMangaNextPageSelector() = popularMangaNextPageSelector()
+
+    override fun mangaDetailsParse(document: Document): SManga = SManga.create().apply {
+        val infoElement = document.select("div.main_container_projeto div.row").first()
+        val colInfo = infoElement.select("div.col-sm-7").first()
+        val colImg = infoElement.select("div.col-sm-5").first()
+        val tableInfo = colInfo.select("table.tabela_info_projeto").first()
+
+        title = colInfo.select("h1.titulo_projeto").text()
+        author = tableInfo.select("td:contains(Roteiro) + td").text()
+        artist = tableInfo.select("td:contains(Arte) + td").text()
+        genre = colImg.select("div.generos a.link_genero").joinToString { it.text() }
+        status = tableInfo.select("td:contains(Status no Scan) + td").text().toStatus()
+        description = colInfo.select("h2:contains(Sinopse) + div.conteudo_projeto").text()
+        thumbnail_url = infoElement.select("div.imagens_projeto_container img").first().attr("src")
+    }
+
+    override fun chapterListParse(response: Response): List<SChapter> {
+        return super.chapterListParse(response).reversed()
+    }
+
+    override fun chapterListSelector() = "div.capitulos_leitor_online a.link_capitulo"
+
+    override fun chapterFromElement(element: Element): SChapter = SChapter.create().apply {
+        name = element.text()
+        scanlator = this@MundoMangaKun.name
+
+        val link = element.attr("onclick")
+            .substringAfter("this,")
+            .substringBeforeLast(")")
+            .replace("'", "\"")
+            .let { json.parseToJsonElement(it) }
+            .jsonArray
+            .first { it.jsonObject["tipo"]!!.jsonPrimitive.content == "LEITOR" }
+
+        setUrlWithoutDomain(link.jsonObject["link"]!!.jsonPrimitive.content)
+    }
+
+    override fun pageListParse(document: Document): List<Page> {
+        return document.select("script:containsData(var paginas)").first().data()
+            .substringAfter("var paginas = ")
+            .substringBefore("];")
+            .let { json.parseToJsonElement("$it]") }
+            .jsonArray
+            .mapIndexed { i, page -> Page(i, document.location(), page.jsonPrimitive.content) }
+    }
+
+    override fun imageUrlParse(document: Document) = ""
+
+    override fun imageRequest(page: Page): Request {
+        val newHeaders = headersBuilder()
+            .set("Referer", page.url)
+            .build()
+
+        return GET(page.imageUrl!!, newHeaders)
+    }
+
+    override fun getFilterList(): FilterList = FilterList(
+        GenreFilter(getGenreList()),
+        StatusFilter(getStatusList()),
+        SortFilter()
+    )
+
+    data class Tag(val text: String, val value: String) {
+        override fun toString(): String = text
+    }
+
+    open class TagFilter(name: String, tags: List<Tag>) : Filter.Select<Tag>(name, tags.toTypedArray()) {
+        val selected: Tag
+            get() = values[state]
+    }
+
+    class GenreFilter(genres: List<Tag>) : TagFilter("Gênero", genres)
+    class StatusFilter(status: List<Tag>) : TagFilter("Status", status)
+    class SortFilter : Filter.Sort("Ordem", arrayOf("Alfabeticamente"), Selection(0, true))
+
+    // [...document.querySelectorAll('#leitor_genero_projeto option')]
+    //     .map(x => `Tag("${x.innerText}", "${x.value}")`)
+    //     .join(',\n')
+    private fun getGenreList() = listOf(
+        Tag("Selecione…", ""),
+        Tag("Ação", "59"),
+        Tag("Adulto", "63"),
+        Tag("Artes Marciais", "77"),
+        Tag("Aventura", "65"),
+        Tag("Comédia", "30"),
+        Tag("Drama", "17"),
+        Tag("Ecchi", "74"),
+        Tag("Escolar", "64"),
+        Tag("Esportes", "87"),
+        Tag("Fantasia", "31"),
+        Tag("Harem", "82"),
+        Tag("hentai", "525"),
+        Tag("Histórico", "95"),
+        Tag("Josei", "553"),
+        Tag("Mistério", "19"),
+        Tag("Oneshot", "527"),
+        Tag("Psicológico", "20"),
+        Tag("Romance", "75"),
+        Tag("Sci-fi", "66"),
+        Tag("Seinen", "61"),
+        Tag("Serial Killer", "93"),
+        Tag("Shoujo", "568"),
+        Tag("Shoujo Ai", "92"),
+        Tag("Shounen", "67"),
+        Tag("Slice Of Life", "94"),
+        Tag("Sobrenatural", "76"),
+        Tag("Sobrevivência", "90"),
+        Tag("Super Poderes", "425"),
+        Tag("Supernatual", "60"),
+        Tag("Suspense", "520"),
+        Tag("Terror", "18"),
+        Tag("Tragédia", "21"),
+        Tag("Yuri", "526")
+    )
+
+    // [...document.querySelectorAll('#leitor_status_projeto option')]
+    //     .map(x => `Tag("${x.innerText}", "${x.value}")`)
+    //     .join(',\n')
+    private fun getStatusList() = listOf(
+        Tag("Selecione…", ""),
+        Tag("Cancelado", "6"),
+        Tag("Em Andamento", "8"),
+        Tag("Finalizado", "7"),
+        Tag("One Shot", "4")
+    )
+
+    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")
+
+    private fun String.toStatus(): Int = when (this) {
+        "Em Andamento" -> SManga.ONGOING
+        "Finalizado", "One Shot" -> SManga.COMPLETED
+        else -> SManga.UNKNOWN
+    }
+
+    companion object {
+        private const val USER_AGENT = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) " +
+            "AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.128 Safari/537.36"
+    }
+}