diff --git a/lib/aozora.rb b/lib/aozora.rb
new file mode 100644
index 00000000..fa3aa8c0
--- /dev/null
+++ b/lib/aozora.rb
@@ -0,0 +1,57 @@
+# frozen_string_literal: true
+
+#
+# Copyright 2013 whiteleaf. All rights reserved.
+#
+
+require "memoist"
+require "pathname"
+require "active_support/core_ext/hash/deep_merge"
+require_relative "narou"
+
+module AozoraEpub3
+  _ORG = {
+    type: :org,
+    name: "AozoraEpub3 (元祖)",
+    exist: "template/OPS/css/vertical_font.css",
+    dakuten: [:css, :font],
+    css: {
+      mode: :erb,
+      src: "vertical_font.css",
+      dst: "template/OPS/css_custom/vertical_font.css",
+    },
+    font: {
+      mode: :copy,
+      src: "DMincho.ttf",
+      dst: "template/OPS/fonts/DMincho.ttf",
+    },
+  }
+  _DEN = _ORG.deep_merge({  # hash#deep_merge <- active_support
+    type: :den,
+    name: "AozoraEpub3 (電書協)",
+    exist: "template/item/style/font.css",
+    css: {
+      src: "denshokyo_font.css",
+      dst: "template/item/style_custom/font.css",
+    },
+    font: { dst: "template/item/fonts/DMincho.ttf" },
+  })
+  AOZORAEPUB3_TYPE = [_ORG, _DEN]
+
+  class << self
+    extend Memoist
+
+    def aozoraepub3_type
+      aozoraepub3_type_with_path(Narou.aozoraepub3_path.dirname)
+    end
+    memoize :aozoraepub3_type
+
+    # ファイル配置がオリジナルタイプか電書協タイプか判定する
+    def aozoraepub3_type_with_path(aozora_path)
+      AOZORAEPUB3_TYPE.find do |item|
+        aozora_path.join(item[:exist]).exist?
+      end
+    end
+
+  end
+end
diff --git a/lib/command/init.rb b/lib/command/init.rb
index f2555588..432ef086 100644
--- a/lib/command/init.rb
+++ b/lib/command/init.rb
@@ -6,6 +6,7 @@
 
 require_relative "../inventory"
 require_relative "../commandbase"
+require_relative "../aozora"
 
 module Command
   class Init < CommandBase
@@ -127,8 +128,10 @@ def rewrite_aozoraepub3_files(aozora_path, line_height)
       puts chuki_tag_path
       puts
       # ファイルコピー
-      src = ["AozoraEpub3.ini", "vertical_font.css"]
-      dst = ["AozoraEpub3.ini", "template/OPS/css_custom/vertical_font.css"]
+      type = AozoraEpub3.aozoraepub3_type_with_path(Pathname(aozora_path))
+      src = ["AozoraEpub3.ini", type[:css][:src]]
+      dst = ["AozoraEpub3.ini", type[:css][:dst]]
+      use_dakuten_font = false
       puts "(次のファイルをコピーor上書きしました)"
       src.size.times do |i|
         src_full_path = File.join(Narou.preset_dir, src[i])
diff --git a/lib/helper.rb b/lib/helper.rb
index 0de6a9e7..6e9683ee 100644
--- a/lib/helper.rb
+++ b/lib/helper.rb
@@ -376,6 +376,7 @@ def truncate_folder_title(title, limit = Inventory.load["folder-length-limit"])
   def erb_copy(src, dst, _binding)
     data = File.read(src, mode: "r:BOM|UTF-8")
     result = ERB.new(data, trim_mode: "-").result(_binding)
+    Pathname(dst).dirname.mkpath
     File.write(dst, result)
   end
 
diff --git a/lib/novelconverter.rb b/lib/novelconverter.rb
index 1c12a469..e6818121 100644
--- a/lib/novelconverter.rb
+++ b/lib/novelconverter.rb
@@ -17,6 +17,7 @@
 require_relative "inventory"
 require_relative "html"
 require_relative "eventable"
+require_relative "aozora"
 
 class NovelConverter
   include Narou::Eventable
@@ -85,22 +86,20 @@ def self.convert_file(filename, options = {})
     }
   end
 
-  DAKUTEN_FROM = ["vertical_font_with_dakuten.css", "DMincho.ttf"]
-  DAKUTEN_TO = ["template/OPS/css_custom/vertical_font.css", "template/OPS/fonts/DMincho.ttf"]
-  DAKUTEN_ERB = [true, false]
-
   def self.activate_dakuten_font_files
     preset_dir = Narou.preset_dir
-    aozora_dir = File.dirname(Narou.aozoraepub3_path)
+    aozora_dir = Narou.aozoraepub3_path.dirname
+    type = AozoraEpub3.aozoraepub3_type
     line_height = Narou.line_height
+    use_dakuten_font = true
 
-    DAKUTEN_FROM.each_with_index do |name, i|
-      src = File.join(preset_dir, name)
-      dst = File.join(aozora_dir, DAKUTEN_TO[i])
-      if DAKUTEN_ERB[i]
+    type[:dakuten].each do |name|
+      src = preset_dir.join(type[name][:src])
+      dst = aozora_dir.join(type[name][:dst])
+      if type[name][:mode] == :erb
         Helper.erb_copy(src, dst, binding)
       else
-        FileUtils.mkdir_p(File.dirname(dst))
+        dst.dirname.mkpath
         FileUtils.copy(src, dst)
       end
     end
@@ -108,12 +107,14 @@ def self.activate_dakuten_font_files
 
   def self.inactivate_dakuten_font_files
     preset_dir = Narou.preset_dir
-    aozora_dir = File.dirname(Narou.aozoraepub3_path)
-    path_normal_vertical_css = File.join(preset_dir, "vertical_font.css")
+    aozora_dir = Narou.aozoraepub3_path.dirname
+    type = AozoraEpub3.aozoraepub3_type
+    path_normal_css = preset_dir.join(type[:css][:src])
     line_height = Narou.line_height
+    use_dakuten_font = false
 
-    Helper.erb_copy(path_normal_vertical_css, File.join(aozora_dir, DAKUTEN_TO[0]), binding)
-    FileUtils.remove(File.join(aozora_dir, DAKUTEN_TO[1]))
+    Helper.erb_copy(path_normal_css, aozora_dir.join(type[:css][:dst]), binding)
+    aozora_dir.join(type[:font][:dst]).delete
   end
 
   #
diff --git a/preset/vertical_font_with_dakuten.css b/preset/denshokyo_font.css
similarity index 60%
rename from preset/vertical_font_with_dakuten.css
rename to preset/denshokyo_font.css
index c611a738..0f0ac00a 100644
--- a/preset/vertical_font_with_dakuten.css
+++ b/preset/denshokyo_font.css
@@ -1,15 +1,28 @@
 @charset "utf-8";
 @namespace "http://www.w3.org/1999/xhtml";
 
-body {
+/** 横書きフォント */
+.hltr body {
+	font-family: "ＭＳ 明朝", "MS Mincho", "ヒラギノ明朝 ProN W3", "HiraMinProN-W3", serif, sans-serif;
+}
+/** 縦書きフォント */
+.vrtl body {
 	font-family: "@ＭＳ 明朝", "@MS Mincho", "ヒラギノ明朝 ProN W3", "HiraMinProN-W3", serif, sans-serif;
+}
+
+/** 以下 narou.rb オリジナル設定 */
+
+body {
 	line-height: <%= line_height %>em !important;
 }
 
-.gtc, .b {
+/* .gtc .b .i は電書協準拠により .gfont .bold .italic となる */
+/* AozoraEpub3には太字注記でゴシックを使うオプション(BoldUseGothic)あるが.bに設定している */
+.vrtl .bold {
 	font-family: '@ＭＳ ゴシック','@MS Gothic',sans-serif !important;
 }
 
+/* .bold と .italic の設定は標準で成されている気がするけど */
 .b { font-weight: bold; }
 .i { font-style: italic; }
 
@@ -18,6 +31,7 @@ rt { font-size: 0.6em; }
 /* カスタム注記用 */
 
 /* 柱（もどき） */
+/* 柱（もどき）は横書きされるので切替えは必要なさそう */
 .running_head {
 	position: absolute !important;
 	top: 15px;
@@ -25,20 +39,30 @@ rt { font-size: 0.6em; }
 	font-size: 0.8em;
 }
 
+/* ページ左右中央 調整 */
+/* ページ左右中央では html.hltr なので横書きの３字下げも付くのを防ぐ */
+.main.vrtl.block-align-center div.mt3 {
+	margin-left: 0;
+}
+
+<% if use_dakuten_font %>
 /* 濁点フォント */
 @font-face {
 	font-family: "DakutenAokinMincho";
 	src: url(../fonts/DMincho.ttf) format("truetype");
 }
 
+/* 横書きでは設定の有無に関わらず濁点は付かない。narou.rbで縦書きに限定すべき？ */
 .dakuten {
 	font-family: "DakutenAokinMincho" !important;
 }
 
+<% end %>
 /* 二分アキ */
-.half_em_space { padding-top: 0.5em; }
+.vrtl .half_em_space { padding-top: 0.5em; }
 
 /* パラメーター（折り返しあり） */
+/* margin, padding の設定あるが許容範囲？ */
 .custom_parameter_block {
 	font-size: 100%;
 	line-height: 1.2em !important;
@@ -60,7 +84,8 @@ rt { font-size: 0.6em; }
 }
 
 /* 前書き */
-.introduction {
+/* height の設定あるので縦書き限定 */
+.vrtl .introduction {
 	float: right;
 	font-size: 83%;
 	line-height: 1.5em !important;
@@ -82,7 +107,8 @@ rt { font-size: 0.6em; }
 }
 
 /* 後書き */
-.postscript {
+/* height の設定あるので縦書き限定 */
+.vrtl .postscript {
 	float: right;
 	font-size: 83%;
 	line-height: 1.5em !important;
@@ -103,6 +129,9 @@ rt { font-size: 0.6em; }
 	display: inline-block;
 }
 
+/* .hltr .vrtl 無指定でも問題ないと思う */
 div.clear {
 	clear: both;
 }
+
+/* 字詰め (.jzm) 設定はよく分からない */
diff --git a/preset/vertical_font.css b/preset/vertical_font.css
index c77f0307..e8bebe67 100644
--- a/preset/vertical_font.css
+++ b/preset/vertical_font.css
@@ -24,7 +24,17 @@ rt { font-size: 0.6em; }
 	left: 10px;
 	font-size: 0.8em;
 }
+<% if use_dakuten_font %>
+/* 濁点フォント */
+@font-face {
+	font-family: "DakutenAokinMincho";
+	src: url(../fonts/DMincho.ttf) format("truetype");
+}
 
+.dakuten {
+	font-family: "DakutenAokinMincho" !important;
+}
+<% end %>
 /* 二分アキ */
 .half_em_space { padding-top: 0.5em; }