diff --git a/LICENSE.md b/LICENSE.md
new file mode 100755
index 0000000..7438fdf
--- /dev/null
+++ b/LICENSE.md
@@ -0,0 +1,21 @@
+# 076 Free License
+
+Copyright (c) テクニカル諏訪子
+
+Permission is hereby granted to any person obtaining a copy of the software
+LibJpeg (the "Software") to use, modify, merge, copy, publish, distribute,
+sublicense, and/or sell copies of the Software, subject to the following conditions:
+
+    1. **Origin Attribution**:
+       - You must not misrepresent the origin of the Software; you must not claim
+         you created the original Software.
+    2. **Notice Preservation**:
+       - This license and the above copyright notice must remain intact in all copies
+         of the source code.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
+OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/file.cc b/file.cc
new file mode 100755
index 0000000..c3a6bf1
--- /dev/null
+++ b/file.cc
@@ -0,0 +1,22 @@
+#include "file.hh"
+
+#include <iostream>
+#include <fstream>
+
+vector<u8> read_file(const string &filename) {
+  std::ifstream file(filename, std::ios::binary | std::ios::ate);
+  if (!file) {
+    throw std::runtime_error("�t�@�C�����J���Ɏ��s�F " + filename);
+  }
+
+  const auto size = file.tellg();
+  file.seekg(0);
+  vector<u8> data(static_cast<size_t>(size));
+  if (!file.read(reinterpret_cast<char *>(data.data()), size)) {
+    throw std::runtime_error("�t�@�C���̓ǂݍ��݂Ɏ��s�B");
+  }
+
+  file.close();
+
+  return data;
+}
\ No newline at end of file
diff --git a/file.hh b/file.hh
new file mode 100755
index 0000000..b090c35
--- /dev/null
+++ b/file.hh
@@ -0,0 +1,8 @@
+#ifndef FILE_HH
+#define FILE_HH
+
+#include "types.hh"
+
+vector<u8> read_file(const string &filename);
+
+#endif // FILE_HH
\ No newline at end of file