diff --git a/Makefile b/Makefile
index 63a09b6..6e61fc1 100644
--- a/Makefile
+++ b/Makefile
@@ -6,4 +6,4 @@ LDFLAGS := $(shell pkg-config --libs ${LIBS})
 CC_COMMAND := ${CC} ${INCDIR} ${CFLAGS}
 all: build
 build:
-	${CC_COMMAND} src/util/string.c src/util/xml.c src/util/soup.c src/view/list_view_manga.c src/view/main_view.c src/manga.c src/backend/readmng.c manga.c main.c -o main ${LDFLAGS} -ggdb
+	${CC_COMMAND} src/util/regex.c src/util/string.c src/util/xml.c src/util/soup.c src/view/list_view_manga.c src/view/main_view.c src/manga.c src/backend/readmng.c manga.c main.c -o main ${LDFLAGS} -ggdb
diff --git a/include/manga.h b/include/manga.h
deleted file mode 100644
index 708b4d0..0000000
--- a/include/manga.h
+++ /dev/null
@@ -1,30 +0,0 @@
-#pragma once
-#include <libsoup/soup.h>
-#include <libxml/HTMLparser.h>
-#include <libxml/xpath.h>
-#ifndef PCRE2_CODE_UNIT_WIDTH
-#define PCRE2_CODE_UNIT_WIDTH 8
-#include <pcre2.h>
-#endif
-
-struct Manga {
-	char *title;
-	char *image_url;
-};
-
-struct SplittedString {
-    struct String *substrings;
-    size_t n_strings;
-};
-
-struct String {
-    char *content;
-    size_t size;
-};
-
-struct SplittedString *
-split(char *re_str, size_t re_str_size, const char *subject, size_t subject_size);
-void
-splitted_string_free (struct SplittedString *splitted_string);
-char *
-match_1 (char *re_str, char *subject);
diff --git a/include/openmg/util/regex.h b/include/openmg/util/regex.h
new file mode 100644
index 0000000..3d1dc7e
--- /dev/null
+++ b/include/openmg/util/regex.h
@@ -0,0 +1,32 @@
+#pragma once
+#include <glib-object.h>
+
+G_BEGIN_DECLS;
+
+#define MG_TYPE_UTIL_REGEX mg_util_regex_get_type()
+G_DECLARE_FINAL_TYPE (MgUtilRegex, mg_util_regex, MG, UTIL_REGEX, GObject)
+
+MgUtilRegex *mg_util_regex_new ();
+
+
+struct SplittedString {
+    struct String *substrings;
+    size_t n_strings;
+};
+
+struct String {
+    char *content;
+    size_t size;
+};
+
+struct SplittedString *
+mg_util_regex_split (MgUtilRegex *self,
+        char *re_str, size_t re_str_size, const char *subject, size_t subject_size);
+void
+mg_util_regex_splitted_string_free (MgUtilRegex *self,
+        struct SplittedString *splitted_string);
+char *
+mg_util_regex_match_1 (MgUtilRegex *self,
+        char *re_str, char *subject);
+
+G_END_DECLS
diff --git a/src/backend/readmng.c b/src/backend/readmng.c
index f8c8e8f..60ca01f 100644
--- a/src/backend/readmng.c
+++ b/src/backend/readmng.c
@@ -2,6 +2,7 @@
 
 #include <openmg/backend/readmng.h>
 #include <openmg/util/soup.h>
+#include <openmg/util/regex.h>
 #include <openmg/util/xml.h>
 #include <openmg/manga.h>
 
@@ -255,7 +256,8 @@ static char *
 mg_backend_get_id_manga_link (MgBackendReadmng *self, xmlNodePtr a) {
     char *re_str = "readmng\\.com/([^/]+)";
     MgUtilXML *xml_utils = self->xml_utils;
-    return match_1 (re_str, mg_util_xml_get_attr (xml_utils, a, "href"));
+    MgUtilRegex *regex_util = mg_util_regex_new ();
+    return mg_util_regex_match_1 (regex_util, re_str, mg_util_xml_get_attr (xml_utils, a, "href"));
 }
 
 static void
diff --git a/manga.c b/src/util/regex.c
similarity index 77%
rename from manga.c
rename to src/util/regex.c
index f272349..d61d43b 100644
--- a/manga.c
+++ b/src/util/regex.c
@@ -1,21 +1,42 @@
-#include <libsoup/soup.h>
+#include <glib-object.h>
+
 #ifndef PCRE2_CODE_UNIT_WIDTH
 #define PCRE2_CODE_UNIT_WIDTH 8
 #include <pcre2.h>
 #endif
 
+#include <openmg/util/regex.h>
 #include <openmg/util/string.h>
 
-#include <manga.h>
+struct _MgUtilRegex {
+    GObject parent_instance;
+};
+
+G_DEFINE_TYPE (MgUtilRegex, mg_util_regex, G_TYPE_OBJECT)
 
-// TODO: Split this file and delete it.
 static void
-iterate_string_to_split(struct SplittedString *splitted_string,
+mg_util_regex_class_init (MgUtilRegexClass *class) {
+}
+static void
+mg_util_regex_init (MgUtilRegex *class) {
+}
+
+static void
+mg_util_regex_iterate_string_to_split (MgUtilRegex *self,
+        struct SplittedString *splitted_string,
         pcre2_code *re, int *will_break, const char *subject,
         size_t subject_size, size_t *start_pos, size_t *offset);
 
+MgUtilRegex *
+mg_util_regex_new () {
+    MgUtilRegex *self = NULL;
+    self = MG_UTIL_REGEX ((g_object_new (MG_TYPE_UTIL_REGEX, NULL)));
+    return self;
+}
+
 struct SplittedString *
-split(char *re_str, size_t re_str_size, const char *subject, size_t subject_size) {
+mg_util_regex_split (MgUtilRegex *self,
+        char *re_str, size_t re_str_size, const char *subject, size_t subject_size) {
     pcre2_code_8 *re;
     size_t start_pos = 0;
     size_t offset    = 0;
@@ -31,7 +52,8 @@ split(char *re_str, size_t re_str_size, const char *subject, size_t subject_size
             re_str_size, 0, &regex_compile_error, &error_offset, NULL);
     while (start_pos < subject_size) {
         int will_break = 0;
-        iterate_string_to_split(splitted_string, re, &will_break,
+        mg_util_regex_iterate_string_to_split (self,
+                splitted_string, re, &will_break,
                 subject, subject_size, &start_pos, &offset);
         if (will_break) {
             break;
@@ -43,8 +65,10 @@ split(char *re_str, size_t re_str_size, const char *subject, size_t subject_size
 
     return splitted_string;
 }
+
 void
-splitted_string_free (struct SplittedString *splitted_string) {
+mg_util_regex_splitted_string_free (MgUtilRegex *self,
+        struct SplittedString *splitted_string) {
     for (int i = 0; i<splitted_string->n_strings; i++) {
         g_free (splitted_string->substrings[i].content);
     }
@@ -54,8 +78,9 @@ splitted_string_free (struct SplittedString *splitted_string) {
 }
 
 static void
-iterate_string_to_split(struct SplittedString *splitted_string,
-    pcre2_code *re, int *will_break, const char *subject,
+mg_util_regex_iterate_string_to_split (MgUtilRegex *self,
+        struct SplittedString *splitted_string,
+        pcre2_code *re, int *will_break, const char *subject,
         size_t subject_size, size_t *start_pos, size_t *offset) {
     pcre2_match_data_8 *match_data;
     PCRE2_SIZE *ovector;
@@ -104,7 +129,8 @@ cleanup_iterate_string_to_split:
 }
 
 char *
-match_1 (char *re_str, char *subject) {
+mg_util_regex_match_1 (MgUtilRegex *self,
+        char *re_str, char *subject) {
     pcre2_code *re;    
     pcre2_match_data *match_data;
 
diff --git a/src/util/soup.c b/src/util/soup.c
index 94965c4..e273a05 100644
--- a/src/util/soup.c
+++ b/src/util/soup.c
@@ -28,7 +28,6 @@ mg_util_soup_get_request (MgUtilSoup *self, const char *url, gsize *size_respons
     SoupSession *soup_session;
     SoupMessage *msg;
     GValue response = G_VALUE_INIT;
-    guint status;
 
     *size_response_text = 0;
 
@@ -36,7 +35,7 @@ mg_util_soup_get_request (MgUtilSoup *self, const char *url, gsize *size_respons
 
     soup_session = soup_session_new ();
     msg = soup_message_new ("GET", url);
-    status = soup_session_send_message (soup_session, msg);
+    soup_session_send_message (soup_session, msg);
     g_object_get_property(
             G_OBJECT (msg),
             "response-body-data",
diff --git a/src/util/xml.c b/src/util/xml.c
index 716b791..381717e 100644
--- a/src/util/xml.c
+++ b/src/util/xml.c
@@ -4,6 +4,7 @@
 #include <libxml/xpath.h>
 
 #include <openmg/util/string.h>
+#include <openmg/util/regex.h>
 #include <openmg/util/xml.h>
 
 struct _MgUtilXML {
@@ -94,8 +95,9 @@ mg_util_xml_has_class (MgUtilXML *self,
         const char *class_attribute, const char *class_to_check) {
     char *re = "\\s+";
     struct SplittedString *classes;
+    MgUtilRegex *regex_util = mg_util_regex_new ();
     int return_value = 0;
-    classes = split (re, strlen(re), class_attribute,
+    classes = mg_util_regex_split (regex_util, re, strlen(re), class_attribute,
             strlen (class_attribute));
     for (int i = 0; i<classes->n_strings; i++) {
         if (strcmp (classes->substrings[i].content, class_to_check) == 0) {
@@ -105,7 +107,7 @@ mg_util_xml_has_class (MgUtilXML *self,
     }
 
 cleanup_has_class:
-    splitted_string_free (classes);
+    mg_util_regex_splitted_string_free (regex_util, classes);
     return return_value;
 }