diff --git a/src/all/freleinbooks/AndroidManifest.xml b/src/all/freleinbooks/AndroidManifest.xml
new file mode 100644
index 000000000..b4571bfa8
--- /dev/null
+++ b/src/all/freleinbooks/AndroidManifest.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest package="eu.kanade.tachiyomi.extension" />
\ No newline at end of file
diff --git a/src/all/freleinbooks/build.gradle b/src/all/freleinbooks/build.gradle
new file mode 100644
index 000000000..de6902261
--- /dev/null
+++ b/src/all/freleinbooks/build.gradle
@@ -0,0 +1,12 @@
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+
+ext {
+    extName = 'Frelein Books'
+    pkgNameSuffix = 'all.freleinbooks'
+    extClass = '.FreleinBooks'
+    extVersionCode = 1
+    isNsfw = false
+}
+
+apply from: "$rootDir/common.gradle"
diff --git a/src/all/freleinbooks/res/mipmap-hdpi/ic_launcher.png b/src/all/freleinbooks/res/mipmap-hdpi/ic_launcher.png
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diff --git a/src/all/freleinbooks/res/mipmap-xhdpi/ic_launcher.png b/src/all/freleinbooks/res/mipmap-xhdpi/ic_launcher.png
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diff --git a/src/all/freleinbooks/res/mipmap-xxhdpi/ic_launcher.png b/src/all/freleinbooks/res/mipmap-xxhdpi/ic_launcher.png
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diff --git a/src/all/freleinbooks/res/mipmap-xxxhdpi/ic_launcher.png b/src/all/freleinbooks/res/mipmap-xxxhdpi/ic_launcher.png
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diff --git a/src/all/freleinbooks/res/web_hi_res_512.png b/src/all/freleinbooks/res/web_hi_res_512.png
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diff --git a/src/all/freleinbooks/src/eu/kanade/tachiyomi/extension/all/freleinbooks/FreleinBooks.kt b/src/all/freleinbooks/src/eu/kanade/tachiyomi/extension/all/freleinbooks/FreleinBooks.kt
new file mode 100644
index 000000000..1559a2d88
--- /dev/null
+++ b/src/all/freleinbooks/src/eu/kanade/tachiyomi/extension/all/freleinbooks/FreleinBooks.kt
@@ -0,0 +1,271 @@
+package eu.kanade.tachiyomi.extension.all.freleinbooks
+
+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 okhttp3.Request
+import org.jsoup.nodes.Document
+import org.jsoup.nodes.Element
+import java.text.SimpleDateFormat
+import java.util.Calendar
+import java.util.Locale
+
+class FreleinBooks() : ParsedHttpSource() {
+    override val baseUrl = "https://books.frelein.my.id"
+    override val lang = "all"
+    override val name = "Frelein Books"
+    override val supportsLatest = true
+
+    override fun headersBuilder() = super.headersBuilder()
+        .add("Referer", "$baseUrl/")
+
+    private val Element.imgSrc: String
+        get() = attr("data-lazy-src")
+            .ifEmpty { attr("data-src") }
+            .ifEmpty { attr("src") }
+
+    // Latest
+    override fun latestUpdatesFromElement(element: Element): SManga {
+        val manga = SManga.create()
+        manga.thumbnail_url = element.selectFirst("img")!!.imgSrc
+        manga.title = element.select(".postTitle").text()
+        manga.setUrlWithoutDomain(element.select(".postTitle > a").attr("abs:href"))
+        return manga
+    }
+
+    override fun latestUpdatesNextPageSelector() = ".olderLink"
+    override fun latestUpdatesRequest(page: Int): Request {
+        return if (page == 1) {
+            GET(baseUrl)
+        } else {
+            val dateParam = page * 7 * 2
+            // Calendar set to the current date
+            val calendar: Calendar = Calendar.getInstance()
+            // rollback 14 days
+            calendar.add(Calendar.DAY_OF_YEAR, -dateParam)
+            val formatter = SimpleDateFormat("yyyy-MM-dd", Locale.US)
+            // now the date is 14 days back
+            GET("$baseUrl/search?updated-max=${formatter.format(calendar.time)}T12:38:00%2B07:00&max-results=12&start=12&by-date=false")
+        }
+    }
+
+    override fun latestUpdatesSelector() = ".blogPosts > article"
+
+    // Popular
+    override fun popularMangaFromElement(element: Element): SManga {
+        val manga = SManga.create()
+        manga.thumbnail_url = element.selectFirst("img")!!.imgSrc
+        manga.title = element.select("h3").text()
+        manga.setUrlWithoutDomain(element.select("h3 > a").attr("abs:href"))
+        return manga
+    }
+
+    override fun popularMangaNextPageSelector(): String? = null
+    override fun popularMangaRequest(page: Int) = latestUpdatesRequest(page)
+    override fun popularMangaSelector() = ".itemPopulars article"
+
+    // Search
+    override fun searchMangaFromElement(element: Element) = latestUpdatesFromElement(element)
+    override fun searchMangaNextPageSelector() = latestUpdatesNextPageSelector()
+    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
+        val filterList = if (filters.isEmpty()) getFilterList() else filters
+        val tagFilter = filterList.findInstance<TagFilter>()!!
+        val groupFilter = filterList.findInstance<GroupFilter>()!!
+        val magazineFilter = filterList.findInstance<MagazineFilter>()!!
+        val fashionMagazineFilter = filterList.findInstance<FashionMagazineFilter>()!!
+        return when {
+            query.isEmpty() && groupFilter.state != 0 -> GET("$baseUrl/search/label/${groupFilter.toUriPart()}")
+            query.isEmpty() && magazineFilter.state != 0 -> GET("$baseUrl/search/label/${magazineFilter.toUriPart()}")
+            query.isEmpty() && fashionMagazineFilter.state != 0 -> GET("$baseUrl/search/label/${fashionMagazineFilter.toUriPart()}")
+            query.isEmpty() && tagFilter.state.isNotEmpty() -> GET("$baseUrl/search/label/${tagFilter.state}")
+            query.isNotEmpty() -> GET("$baseUrl/search?q=$query")
+            else -> latestUpdatesRequest(page)
+        }
+    }
+
+    override fun searchMangaSelector() = latestUpdatesSelector()
+
+    // Details
+    override fun mangaDetailsParse(document: Document): SManga {
+        val manga = SManga.create()
+        manga.title = document.select(".postTitle").text()
+        manga.description = "Read ${document.select(".postTitle").text()} \n \nNote: If you encounters error when opening the magazine, please press the WebView button then leave a comment on our web so we can update it soon."
+        manga.genre = document.select(".labelLink > a")
+            .joinToString(", ") { it.text() }
+        manga.status = SManga.COMPLETED
+        return manga
+    }
+
+    override fun chapterFromElement(element: Element): SChapter {
+        val chapter = SChapter.create()
+        chapter.setUrlWithoutDomain(element.select("link[rel=\"canonical\"]").attr("href"))
+        chapter.name = "Gallery"
+        chapter.date_upload = getDate(element.select("link[rel=\"canonical\"]").attr("href"))
+        return chapter
+    }
+
+    override fun chapterListSelector() = "html"
+
+    // Pages
+    override fun pageListParse(document: Document): List<Page> {
+        val pages = mutableListOf<Page>()
+        document.select("noscript").remove()
+        document.select(".gallerybox a > img").forEachIndexed { i, it ->
+            // format new img/b/
+            if (it.imgSrc.contains("img/b/")) {
+                if (it.imgSrc.contains("/w768-rw/")) {
+                    val itUrl = it.imgSrc.replace("/w768-rw/", "/s0/")
+                    pages.add(Page(i, itUrl, itUrl))
+                }
+                if (it.imgSrc.contains("/w480-rw/")) {
+                    val itUrl = it.imgSrc.replace("/w480-rw/", "/s0/")
+                    pages.add(Page(i, itUrl, itUrl))
+                }
+            }
+            // format new img/b/
+            else {
+                if (it.imgSrc.contains("=w768-rw")) {
+                    val itUrl = it.imgSrc.replace("=w768-rw", "")
+                    pages.add(Page(i, itUrl, itUrl))
+                } else if (it.imgSrc.contains("=w480-rw")) {
+                    val itUrl = it.imgSrc.replace("=w480-rw", "")
+                    pages.add(Page(i, itUrl, itUrl))
+                } else {
+                    val itUrl = it.imgSrc
+                    pages.add(Page(i, itUrl, itUrl))
+                }
+            }
+        }
+        return pages
+    }
+
+    override fun imageUrlParse(document: Document): String =
+        throw UnsupportedOperationException("Not used")
+
+    // Filters
+
+    override fun getFilterList(): FilterList = FilterList(
+        Filter.Header("NOTE: Only one filter will be applied!"),
+        Filter.Separator(),
+        GroupFilter(),
+        MagazineFilter(),
+        FashionMagazineFilter(),
+        TagFilter(),
+    )
+
+    open class UriPartFilter(
+        displayName: String,
+        private val valuePair: Array<Pair<String, String>>,
+    ) : Filter.Select<String>(displayName, valuePair.map { it.first }.toTypedArray()) {
+        fun toUriPart() = valuePair[state].second
+    }
+
+    class MagazineFilter : UriPartFilter(
+        "Magazine",
+        arrayOf(
+            Pair("Any", ""),
+            Pair("B.L.T.", "B.L.T."),
+            Pair("BIG ONE GIRLS", "BIG ONE GIRLS"),
+            Pair("BOMB!", "BOMB!"),
+            Pair("BRODY", "BRODY"),
+            Pair("BUBKA", "BUBKA"),
+            Pair("ENTAME", "ENTAME"),
+            Pair("EX Taishu", "EX Taishu"),
+            Pair("FINEBOYS", "FINEBOYS"),
+            Pair("FLASH", "FLASH"),
+            Pair("Fine", "Fine"),
+            Pair("Friday", "Friday"),
+            Pair("HINA_SATSU", "HINA_SATSU"),
+            Pair("IDOL AND READ", "IDOL AND READ"),
+            Pair("Kadokawa Scene 07", "Kadokawa Scene 07"),
+            Pair("Monthly Basketball", "Monthly Basketball"),
+            Pair("Monthly Young Magazine", "Monthly Young Magazine"),
+            Pair("NOGI_SATSU", "NOGI_SATSU"),
+            Pair("Nylon Japan", "Nylon Japan"),
+            Pair("Platinum FLASH", "Platinum FLASH"),
+            Pair("Shonen Magazine", "Shonen Magazine"),
+            Pair("Shukan Post", "Shukan Post"),
+            Pair("TOKYO NEWS MOOK", "TOKYO NEWS MOOK"),
+            Pair("TV LIFE,Tarzan", "TV LIFE,Tarzan"),
+            Pair("Tokyo Calendar", "Tokyo Calendar"),
+            Pair("Top Yell NEO", "Top Yell NEO"),
+            Pair("UTB", "UTB"),
+            Pair("Weekly Playboy", "Weekly Playboy"),
+            Pair("Weekly SPA", "Weekly SPA"),
+            Pair("Weekly SPA!", "Weekly SPA!"),
+            Pair("Weekly Shonen Champion", "Weekly Shonen Champion"),
+            Pair("Weekly Shonen Magazine", "Weekly Shonen Magazine"),
+            Pair("Weekly Shonen Sunday", "Weekly Shonen Sunday"),
+            Pair("Weekly Shounen Magazine", "Weekly Shounen Magazine"),
+            Pair("Weekly The Television Plus", "Weekly The Television Plus"),
+            Pair("Weekly Zero Jump", "Weekly Zero Jump"),
+            Pair("Yanmaga Web", "Yanmaga Web"),
+            Pair("Young Animal", "Young Animal"),
+            Pair("Young Champion", "Young Champion"),
+            Pair("Young Gangan", "Young Gangan"),
+            Pair("Young Jump", "Young Jump"),
+            Pair("Young Magazine", "Young Magazine"),
+            Pair("blt graph.", "blt graph."),
+            Pair("mini", "mini"),
+        ),
+    )
+
+    class FashionMagazineFilter : UriPartFilter(
+        "Fashion Magazine",
+        arrayOf(
+            Pair("Any", ""),
+            Pair("BAILA", "BAILA"),
+            Pair("Biteki", "Biteki"),
+            Pair("CLASSY", "CLASSY"),
+            Pair("CanCam", "CanCam"),
+            Pair("JJ", "JJ"),
+            Pair("LARME", "LARME"),
+            Pair("MARQUEE", "MARQUEE"),
+            Pair("Maquia", "Maquia"),
+            Pair("Men's non-no", "Men's non-no"),
+            Pair("More", "More"),
+            Pair("Oggi", "Oggi"),
+            Pair("Ray", "Ray"),
+            Pair("Seventeen", "Seventeen"),
+            Pair("Sweet", "Sweet"),
+            Pair("VOCE", "VOCE"),
+            Pair("ViVi", "ViVi"),
+            Pair("With", "With"),
+            Pair("aR", "aR"),
+            Pair("anan", "anan"),
+            Pair("bis", "bis"),
+            Pair("non-no", "non-no"),
+        ),
+    )
+
+    class GroupFilter : UriPartFilter(
+        "Group",
+        arrayOf(
+            Pair("Any", ""),
+            Pair("Hinatazaka46", "Hinatazaka46"),
+            Pair("Nogizaka46", "Nogizaka46"),
+            Pair("Sakurazaka46", "Sakurazaka46"),
+            Pair("Keyakizaka46", "Keyakizaka46"),
+        ),
+    )
+
+    class TagFilter : Filter.Text("Tag")
+
+    private inline fun <reified T> Iterable<*>.findInstance() = find { it is T } as? T
+
+    private fun getDate(str: String): Long {
+        val regex = "[0-9]{4}\\/[0-9]{2}\\/[0-9]{2}".toRegex()
+        val match = regex.find(str)
+        return runCatching { DATE_FORMAT.parse(match!!.value)?.time }.getOrNull() ?: 0L
+    }
+
+    companion object {
+        private val DATE_FORMAT by lazy {
+            SimpleDateFormat("yyyy/MM/dd", Locale.US)
+        }
+    }
+}