diff --git a/lib/aozoraepub3.rb b/lib/aozoraepub3.rb
new file mode 100644
index 00000000..7da7faef
--- /dev/null
+++ b/lib/aozoraepub3.rb
@@ -0,0 +1,301 @@
+# frozen_string_literal: true
+
+#
+# Copyright 2013 whiteleaf. All rights reserved.
+#
+
+require "fileutils"
+require_relative "narou"
+
+#
+# AozoraEpub3 設定処理
+#
+module AozoraEpub3
+  @prev_use_dakuten_font = nil
+
+  def self.setup(global_setting)
+    aozora_dir_path = global_setting["aozoraepub3dir"]
+
+    # 資材アップデーターの取得
+    updater = get_resouce_updater(aozora_dir_path)
+
+    # 更新ファイル名のクリア
+    updater.clear_log
+
+    # iniファイルのコピー
+    updater.copy_ini_file
+
+    # chuki_tag.txt の書き換え
+    updater.replace_chuki_tag_file
+
+    yokogaki = false # dummy
+    use_dakuten_font = false # dummy
+    line_height = global_setting["line-height"]
+    # カスタムCSSファイルのコピー
+    # MEMO:
+    # 変換の時に毎回更新しているので本当はここでやる必要はない
+    # ただ、ここで行えば更新ファイル名をログに出せる
+    updater.copy_css_files(yokogaki, use_dakuten_font, line_height)
+
+    # 内容が同じだと書き換えを行わない場合もあるので、更新日時をアップデート
+    updater.updated_file_paths.each { |path| FileUtils.touch(path) }
+
+    yield(updater.copied_file_paths, updater.updated_file_paths) if block_given?
+  end
+  public_class_method :setup
+
+  #
+  # Aozoraの資材更新
+  #
+  # MEMO:
+  # 資材更新が必要かどうかは作品ごとに異なる。
+  # たとえば濁点フォント機能を有効にしている場合、濁点文字を使ってる作品なら、
+  # 濁点フォントやCSSをコピーする必要があるし、そうでなければ濁点の資材を取り除かなければならない
+  def self.update_resources(yokogaki, use_dakuten_font)
+    return if @prev_use_dakuten_font == use_dakuten_font
+
+    line_height = Narou.line_height
+
+    # 資材アップデーターの取得
+    updater = get_resouce_updater
+
+    # ファイル更新情報のクリア
+    updater.clear_log
+
+    # CSSファイルのコピー
+    updater.copy_css_files(yokogaki, use_dakuten_font, line_height)
+
+    if use_dakuten_font
+      # 濁点フォントファイルのコピー
+      updater.copy_dakuten_font
+    else
+      # 濁点フォントファイルの削除
+      updater.remove_dakuten_font
+    end
+
+    # 設定値の保存
+    @prev_use_dakuten_font = use_dakuten_font
+  end
+  public_class_method :update_resources
+
+  #
+  # Aozora資材アップデーターの取得
+  #
+  def self.get_resouce_updater(aozora_dir_path = nil)
+    aozora_dir_path ||= File.dirname(Narou.aozoraepub3_path)
+    if denshokyo_version?(aozora_dir_path)
+      AozoraResourceUpdaterDen.new(aozora_dir_path)
+    else
+      AozoraResourceUpdater.new(aozora_dir_path)
+    end
+  end
+  private_class_method :get_resouce_updater
+
+  #
+  # Aozora出力形式の判定
+  #
+  def self.denshokyo_version?(aozora_dir_path)
+    # template/item ディレクトリがあれば電書協対応版 (改造版v1.1.1以降) とみなす
+    Dir.exist?(File.join(aozora_dir_path, "template", "item"))
+  end
+  private_class_method :denshokyo_version?
+
+  #
+  # Aozora資材アップデーター
+  #
+  class AozoraResourceUpdater
+    VERTICAL_CSS   = "vertical_font.css"
+    DAKUTEN_FONT   = "DMincho.ttf"
+
+    def initialize(aozora_dir_path = nil)
+      @format_type = "honke"
+      @aozora_dir_path     = aozora_dir_path || File.dirname(Narou.aozoraepub3_path)
+      aozora_ops_dir       = File.join(@aozora_dir_path, "template", "OPS")
+      @aozora_naroubak_dir = File.join(@aozora_dir_path, "template", "narou_bak")
+      @aozora_css_dir      = File.join(aozora_ops_dir, "css")
+      @aozora_font_dir     = File.join(aozora_ops_dir, "fonts")
+
+      @aozora_chuki_path   = File.join(@aozora_dir_path, "chuki_tag.txt")
+      @narou_rb_chuki_path = File.join(Narou.preset_dir, "custom_chuki_tag.txt")
+
+      clear_log
+    end
+
+    def clear_log
+      @updated_file_paths = []
+      @copied_file_paths = []
+    end
+    attr_reader :updated_file_paths, :copied_file_paths
+
+    def self.get_custom_file_path(file_path, should_create_directory)
+      dir_path = File.dirname(file_path) + "_custom" 
+      if should_create_directory
+        FileUtils.mkdir_p(dir_path)
+      end
+      File.join(dir_path, File.basename(file_path))
+    end
+
+    # iniファイルのコピー
+    def copy_ini_file
+      src = File.join(Narou.preset_dir, "AozoraEpub3.ini")
+      dst = File.join(@aozora_dir_path, "AozoraEpub3.ini")
+      FileUtils.copy(src, dst)
+      @copied_file_paths << dst
+    end
+
+    # 注記ファイルのコピー
+    def replace_chuki_tag_file
+      narou_rb_chuki = File.read(@narou_rb_chuki_path, mode: "r:BOM|UTF-8")
+      aozora_chuki   = File.read(@aozora_chuki_path,   mode: "r:BOM|UTF-8")
+      embedded_mark = "### Narou.rb embedded custom chuki ###"
+      if aozora_chuki =~ /#{embedded_mark}/
+        # MEMO:
+        # 再実行時、ファイル末尾に余計な改行を増やさないよう置換文字列を strip する
+        aozora_chuki.gsub!(/#{embedded_mark}.+#{embedded_mark}/m, narou_rb_chuki.strip)
+      else
+        aozora_chuki << "\n" << narou_rb_chuki
+      end
+      File.write(@aozora_chuki_path, aozora_chuki)
+      @updated_file_paths << @aozora_chuki_path
+    end
+
+    # CSSファイルのコピー
+    def copy_css_files(yokogaki, use_dakuten_font, line_height)
+      css_template_path = File.join(Narou.preset_dir, VERTICAL_CSS)
+      aozora_vrtl_css_path = File.join(@aozora_css_dir, VERTICAL_CSS)
+      css = create_css_text(css_template_path, yokogaki, use_dakuten_font, line_height)
+      create_custom_css_file(aozora_vrtl_css_path, css)
+    end
+
+    # テンプレートファイルをもとにCSS(文字列)を作成
+    def create_css_text(template_file_path, yokogaki, use_dakuten_font, line_height)
+      tategaki = !yokogaki
+      format_type = @format_type
+      template = File.read(template_file_path, mode: "rb:BOM|UTF-8")
+      # yokogaki, tategaki, line_height, use_dakuten_font, format_type などの変数を binding でテンプレートに渡す
+      ERB.new(template, trim_mode: "-").result(binding)
+    end
+
+    # AozoraEpub3 と Narou.rb の CSS をもとに カスタムCSSを作成する
+    def create_css_text2(original_css_path, css_template_path, yokogaki, use_dakuten_font, line_height)
+      # オリジナルCSSファイルを読み込み、内容をバッファに追加
+      lines = File.read(original_css_path, mode: "rb:BOM|UTF-8")
+      # 改行コードを取得
+      eol = lines.include?("\r\n") ? "\r\n" : "\n"
+
+      lines << eol
+      lines << "/*** [START] Narou.rb embedded custom style ***/" << eol
+
+      css = create_css_text(css_template_path, yokogaki, use_dakuten_font, line_height)
+      css.each_line do |line|
+        unless line.match?(/^\s*@(?:charset|namespace)/)
+          # 内容をバッファに追加
+          lines << line.chomp! << eol
+        end
+      end
+
+      lines << eol
+      lines << "/*** [END]  Narou.rb embedded custom style ***/" << eol
+      lines
+    end
+
+    # カスタムCSSファイルの配置
+    def create_custom_css_file(dst_css_file_path, css)
+      custom_css_file_path = AozoraResourceUpdater.get_custom_file_path(dst_css_file_path, true)
+      file_write(custom_css_file_path, css)
+      @copied_file_paths << custom_css_file_path
+    end
+
+    # 濁点フォントパス
+    def dst_dakuten_font_path
+      File.join(@aozora_font_dir, DAKUTEN_FONT)
+    end
+
+    # 濁点フォントファイルのコピー
+    def copy_dakuten_font
+      unless File.exist?(dst_dakuten_font_path)
+        # フォントファイルがない場合、控えのフォントファイルをコピー先に移動する
+        move_file_from_backup(DAKUTEN_FONT, dst_dakuten_font_path)
+      end
+      @copied_file_paths << dst_dakuten_font_path
+    end
+
+    # 濁点フォントファイルの削除
+    def remove_dakuten_font
+      # ファイルをバックアップフォルダに移動する
+      move_file_to_backup(dst_dakuten_font_path)
+    end
+
+    # バックアップファイルをコピー先に移動する
+    # バックアップファイルがない場合、プリセットのファイルをコピー先にコピーする
+    def move_file_from_backup(filename, dst_file_path)
+      FileUtils.mkdir_p(File.dirname(dst_file_path))
+      bak_file_path = File.join(@aozora_naroubak_dir, filename)
+      if File.exist?(bak_file_path)
+        FileUtils.move(bak_file_path, dst_file_path)
+      else
+        src_file_path = File.join(Narou.preset_dir, filename)
+        FileUtils.copy(src_file_path, dst_file_path)
+      end
+    end
+
+    # ファイルをバックアップフォルダに移動する
+    def move_file_to_backup(dst_file_path)
+      return unless File.exist?(dst_file_path)
+
+      FileUtils.mkdir_p(@aozora_naroubak_dir)
+      bak_file_path = File.join(@aozora_naroubak_dir, File.basename(dst_file_path))
+      FileUtils.move(dst_file_path, bak_file_path)
+    end
+  end
+  private_constant :AozoraResourceUpdater
+
+  #
+  # Aozora電書協 資材アップデーター
+  #
+  class AozoraResourceUpdaterDen < AozoraResourceUpdater
+    BOOK_STYLE_CSS = "book-style.css"
+    DENSHOKYO_CSS  = "denshokyo.css"
+
+    def initialize(aozora_dir_path = nil)
+      super(aozora_dir_path)
+      @format_type     = "denshokyo"
+      aozora_item_dir  = File.join(@aozora_dir_path, "template", "item")
+      @aozora_css_dir  = File.join(aozora_item_dir, "style")
+      @aozora_font_dir = File.join(aozora_item_dir, "fonts")
+    end
+
+    #
+    # カスタムCSSファイルの配置
+    #
+    def copy_css_files(yokogaki, use_dakuten_font, line_height)
+      aozora_css_path = File.join(@aozora_css_dir, BOOK_STYLE_CSS)
+      # オリジナルのCSSがなければエラー
+      unless File.exist?(aozora_css_path)
+        raise Errno::ENOENT, "'#{aozora_css_path}' not found."
+      end
+
+      css_template_path = File.join(Narou.preset_dir, DENSHOKYO_CSS)
+      css = create_css_text2(aozora_css_path, css_template_path, yokogaki, use_dakuten_font, line_height)
+      # CSSカスタムファイルの作成
+      create_custom_css_file(aozora_css_path, css)
+    end
+  end
+  private_constant :AozoraResourceUpdaterDen
+end
+
+# ファイルの読込み
+def try_reading_file(filepath)
+  File.exist?(filepath) ? File.read(filepath, mode: "rb:BOM|UTF-8") : nil
+end
+
+# ファイルの書込み
+# 内容が同じなら書き込まない
+def file_write(filepath, content)
+  should_write = !File.exist?(filepath) || try_reading_file(filepath) != content
+  return unless should_write
+
+  File.open(filepath, mode: "wb:UTF-8") do |f|
+    f.write(content)
+  end
+end
diff --git a/lib/command/init.rb b/lib/command/init.rb
index f2555588..6ca6d31b 100644
--- a/lib/command/init.rb
+++ b/lib/command/init.rb
@@ -4,6 +4,7 @@
 # Copyright 2013 whiteleaf. All rights reserved.
 #
 
+require_relative "../aozoraepub3"
 require_relative "../inventory"
 require_relative "../commandbase"
 
@@ -103,41 +104,24 @@ def init_aozoraepub3(force = false)
       end
       line_height = @options["line_height"] || ask_line_height
       puts
-      rewrite_aozoraepub3_files(aozora_path, line_height)
       @global_setting["aozoraepub3dir"] = aozora_path
       @global_setting["line-height"] = line_height
+      AozoraEpub3.setup(@global_setting) { |copied_file_paths, updated_file_paths|
+        puts "(次のファイルを書き換えました)"
+        updated_file_paths.each do |path|
+          puts path
+        end
+        puts
+
+        puts "(次のファイルをコピーor上書きしました)"
+        copied_file_paths.each do |path|
+          puts path
+        end
+      }
       @global_setting.save
       puts "<bold><green>AozoraEpub3の設定を終了しました</green></bold>".termcolor
     end
 
-    def rewrite_aozoraepub3_files(aozora_path, line_height)
-      # chuki_tag.txt の書き換え
-      custom_chuki_tag_path = File.join(Narou.preset_dir, "custom_chuki_tag.txt")
-      chuki_tag_path = File.join(aozora_path, "chuki_tag.txt")
-      custom_chuki_tag = File.read(custom_chuki_tag_path, mode: "r:BOM|UTF-8")
-      chuki_tag = File.read(chuki_tag_path, mode: "r:BOM|UTF-8")
-      embedded_mark = "### Narou.rb embedded custom chuki ###"
-      if chuki_tag =~ /#{embedded_mark}/
-        chuki_tag.gsub!(/#{embedded_mark}.+#{embedded_mark}/m, custom_chuki_tag)
-      else
-        chuki_tag << "\n" + custom_chuki_tag
-      end
-      File.write(chuki_tag_path, chuki_tag)
-      puts "(次のファイルを書き換えました)"
-      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"]
-      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])
-        dst_full_path = File.join(aozora_path, dst[i])
-        Helper.erb_copy(src_full_path, dst_full_path, binding)
-        puts dst_full_path
-      end
-    end
-
     def ask_aozoraepub3_path
       puts
       print "<bold><green>AozoraEpub3のあるフォルダを入力して下さい:</green></bold>\n(未入力でスキップ".termcolor
diff --git a/lib/novelconverter.rb b/lib/novelconverter.rb
index 446d6257..9d522b3b 100644
--- a/lib/novelconverter.rb
+++ b/lib/novelconverter.rb
@@ -6,6 +6,7 @@
 
 require "fileutils"
 require "stringio"
+require_relative "aozoraepub3"
 require_relative "novelsetting"
 require_relative "inspector"
 require_relative "illustration"
@@ -85,36 +86,6 @@ 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)
-    line_height = Narou.line_height
-
-    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]
-        Helper.erb_copy(src, dst, binding)
-      else
-        FileUtils.copy(src, dst)
-      end
-    end
-  end
-
-  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")
-    line_height = Narou.line_height
-
-    Helper.erb_copy(path_normal_vertical_css, File.join(aozora_dir, DAKUTEN_TO[0]), binding)
-    FileUtils.remove(File.join(aozora_dir, DAKUTEN_TO[1]))
-  end
-
   #
   # AozoraEpub3でEPUBファイル作成
   #
@@ -126,6 +97,9 @@ def self.inactivate_dakuten_font_files
   # 返り値：正常終了 :success、エラー終了 :error、AozoraEpub3が見つからなかった nil
   #
   def self.txt_to_epub(filename, dst_dir: nil, device: nil, verbose: false, yokogaki: false, use_dakuten_font: false, stream_io: $stdout2)
+    # AozoraEpub3のリソース更新
+    AozoraEpub3.update_resources(yokogaki, use_dakuten_font)
+
     abs_srcpath = File.expand_path(filename)
     src_dir = File.dirname(abs_srcpath)
 
@@ -165,7 +139,9 @@ def self.txt_to_epub(filename, dst_dir: nil, device: nil, verbose: false, yokoga
     aozoraepub3_basename = File.basename(aozoraepub3_path)
     aozoraepub3_dir = File.dirname(aozoraepub3_path)
 
-    java_encoding = "-Dfile.encoding=UTF-8"
+    java_encoding = "-Dfile.encoding=UTF-8" +
+                    " -Dstdout.encoding=UTF-8 -Dstderr.encoding=UTF-8" +
+                    " -Dsun.stdout.encoding=UTF-8 -Dsun.stderr.encoding=UTF-8"
 
     if Helper.os_cygwin?
       abs_srcpath = Helper.convert_to_windows_path(abs_srcpath)
@@ -176,7 +152,7 @@ def self.txt_to_epub(filename, dst_dir: nil, device: nil, verbose: false, yokoga
     if Helper.os_windows?
       command = "cmd /c #{command}".encode(Encoding::Windows_31J)
     end
-    activate_dakuten_font_files if use_dakuten_font
+
     stream_io.print "AozoraEpub3でEPUBに変換しています"
     begin
       res = Helper::AsyncCommand.exec(command) do
@@ -184,7 +160,6 @@ def self.txt_to_epub(filename, dst_dir: nil, device: nil, verbose: false, yokoga
       end
     ensure
       Dir.chdir(pwd)
-      inactivate_dakuten_font_files if use_dakuten_font
     end
 
     # AozoraEpub3はエラーだとしてもexitコードは0なので、
diff --git a/preset/vertical_font_with_dakuten.css b/preset/denshokyo.css
similarity index 65%
rename from preset/vertical_font_with_dakuten.css
rename to preset/denshokyo.css
index c611a738..a3e1e8ee 100644
--- a/preset/vertical_font_with_dakuten.css
+++ b/preset/denshokyo.css
@@ -1,22 +1,18 @@
 @charset "utf-8";
 @namespace "http://www.w3.org/1999/xhtml";
 
-body {
+.vrtl body, .hltr body {
 	font-family: "@ＭＳ 明朝", "@MS Mincho", "ヒラギノ明朝 ProN W3", "HiraMinProN-W3", serif, sans-serif;
 	line-height: <%= line_height %>em !important;
 }
 
-.gtc, .b {
+.vrtl .gtc, .hltr .gtc, .b {
 	font-family: '@ＭＳ ゴシック','@MS Gothic',sans-serif !important;
 }
 
-.b { font-weight: bold; }
-.i { font-style: italic; }
-
-rt { font-size: 0.6em; }
+.vrtl rt, .hltr rt { font-size: 0.6em; }
 
 /* カスタム注記用 */
-
 /* 柱（もどき） */
 .running_head {
 	position: absolute !important;
@@ -24,17 +20,32 @@ rt { font-size: 0.6em; }
 	left: 10px;
 	font-size: 0.8em;
 }
-
+<% if tategaki %>
+/* ページ左右中央 調整 */
+.main.block-align-center div.mt3 {
+	margin-left: 0 !important;
+	margin-right: 0 !important;
+}
+.main.block-align-center > div {
+	margin-top: 4em !important;
+}
+div.main.block-align-center div.running_head {
+	position: absolute !important;
+	top: 2em;
+	left: 10px;
+	font-size: 0.8em;
+}
+<% end %>
+<% if use_dakuten_font %>
 /* 濁点フォント */
 @font-face {
 	font-family: "DakutenAokinMincho";
 	src: url(../fonts/DMincho.ttf) format("truetype");
 }
-
-.dakuten {
+.vrtl .dakuten, .hltr .dakuten {
 	font-family: "DakutenAokinMincho" !important;
 }
-
+<% end %>
 /* 二分アキ */
 .half_em_space { padding-top: 0.5em; }
 
@@ -52,15 +63,15 @@ rt { font-size: 0.6em; }
 	box-shadow: 3px 3px 3px #bbb;
 	-webkit-box-shadow: 3px 3px 3px #bbb;
 }
-.jzm .custom_parameter_block {
+.vrtl .jzm .custom_parameter_block, .hltr .jzm .custom_parameter_block {
 	display: block;
 }
-.jzm .p .custom_parameter_block {
+.vrtl .jzm .p .custom_parameter_block, .hltr .jzm .p .custom_parameter_block {
 	display: inline-block;
 }
 
 /* 前書き */
-.introduction {
+.vrtl .introduction {
 	float: right;
 	font-size: 83%;
 	line-height: 1.5em !important;
@@ -74,15 +85,15 @@ rt { font-size: 0.6em; }
 	text-align: left !important;
 	height: 70%;
 }
-.jzm .introduction {
+.vrtl .jzm .introduction, .hltr .jzm .introduction {
 	display: block;
 }
-.jzm .p .introduction {
+.vrtl .jzm .p .introduction, .hltr .jzm .p .introduction {
 	display: inline-block;
 }
 
 /* 後書き */
-.postscript {
+.vrtl .postscript {
 	float: right;
 	font-size: 83%;
 	line-height: 1.5em !important;
@@ -96,13 +107,13 @@ rt { font-size: 0.6em; }
 	text-align: left !important;
 	height: 70%;
 }
-.jzm .postscript {
+.vrtl .jzm .postscript, .hltr .jzm .postscript {
 	display: block;
 }
-.jzm .p .postscript {
+.vrtl .jzm .p .postscript, .hltr .jzm .p .postscript {
 	display: inline-block;
 }
 
-div.clear {
+.vrtl div.clear, .hltr div.clear {
 	clear: both;
 }
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; }