diff --git a/.forge/iss-1ac610bafd4c.md b/.forge/iss-1ac610bafd4c.md
new file mode 100644
index 0000000..f4f78e9
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+++ b/.forge/iss-1ac610bafd4c.md
@@ -0,0 +1,3 @@
+# iss-1ac610bafd4c
+
+Forge 이슈 작업 브랜치 `forge/iss-1ac610bafd4c`.
diff --git a/README.md b/README.md
index 8952c08..d259bee 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,8 @@
-# ssot-live
+# Utility Functions
 
+This repository contains a collection of utility functions that can be used across various projects.
+
+## Modules
+- `math_utils`: Contains basic mathematical operations.
+- `string_utils`: Provides string manipulation functions.
+- `date_utils`: Handles date-related utilities.
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diff --git a/tests/test_date_utils.py b/tests/test_date_utils.py
new file mode 100644
index 0000000..3f74e5f
--- /dev/null
+++ b/tests/test_date_utils.py
@@ -0,0 +1,16 @@
+import unittest
+from utils.date_utils import get_current_date, format_date
+from datetime import datetime
+
+
+class TestDateUtils(unittest.TestCase):
+    def test_get_current_date(self):
+        self.assertEqual(get_current_date(), datetime.now().strftime('%Y-%m-%d'))
+
+    def test_format_date(self):
+        date = datetime(2023, 1, 1)
+        self.assertEqual(format_date(date, '%d-%m-%Y'), '01-01-2023')
+
+
+if __name__ == '__main__':
+    unittest.main()
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diff --git a/tests/test_math_utils.py b/tests/test_math_utils.py
new file mode 100644
index 0000000..885391e
--- /dev/null
+++ b/tests/test_math_utils.py
@@ -0,0 +1,22 @@
+import unittest
+from utils.math_utils import add, subtract, multiply, divide
+
+
+class TestMathUtils(unittest.TestCase):
+    def test_add(self):
+        self.assertEqual(add(1, 2), 3)
+
+    def test_subtract(self):
+        self.assertEqual(subtract(5, 3), 2)
+
+    def test_multiply(self):
+        self.assertEqual(multiply(3, 4), 12)
+
+    def test_divide(self):
+        self.assertEqual(divide(10, 2), 5)
+        with self.assertRaises(ValueError):
+            divide(10, 0)
+
+
+if __name__ == '__main__':
+    unittest.main()
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diff --git a/tests/test_string_utils.py b/tests/test_string_utils.py
new file mode 100644
index 0000000..21c6248
--- /dev/null
+++ b/tests/test_string_utils.py
@@ -0,0 +1,15 @@
+import unittest
+from utils.string_utils import capitalize_first_letter, reverse_string
+
+
+class TestStringUtils(unittest.TestCase):
+    def test_capitalize_first_letter(self):
+        self.assertEqual(capitalize_first_letter('hello'), 'Hello')
+        self.assertEqual(capitalize_first_letter(''), '')
+
+    def test_reverse_string(self):
+        self.assertEqual(reverse_string('hello'), 'olleh')
+
+
+if __name__ == '__main__':
+    unittest.main()
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diff --git a/utils/__init__.py b/utils/__init__.py
new file mode 100644
index 0000000..fe90d99
--- /dev/null
+++ b/utils/__init__.py
@@ -0,0 +1,3 @@
+# Utility Functions Package
+
+# This package contains various utility functions for different purposes.
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diff --git a/utils/date_utils.py b/utils/date_utils.py
new file mode 100644
index 0000000..df1b210
--- /dev/null
+++ b/utils/date_utils.py
@@ -0,0 +1,11 @@
+from datetime import datetime
+
+
+def get_current_date():
+    """Returns the current date as a string in YYYY-MM-DD format."""
+    return datetime.now().strftime('%Y-%m-%d')
+
+
+def format_date(date, format='%Y-%m-%d'):
+    """Formats a given date to the specified format."""
+    return date.strftime(format)
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diff --git a/utils/math_utils.py b/utils/math_utils.py
new file mode 100644
index 0000000..d8fe83c
--- /dev/null
+++ b/utils/math_utils.py
@@ -0,0 +1,20 @@
+def add(a, b):
+    """Returns the sum of two numbers."""
+    return a + b
+
+
+def subtract(a, b):
+    """Returns the difference of two numbers."""
+    return a - b
+
+
+def multiply(a, b):
+    """Returns the product of two numbers."""
+    return a * b
+
+
+def divide(a, b):
+    """Returns the quotient of two numbers. Raises ValueError on division by zero."""
+    if b == 0:
+        raise ValueError('Cannot divide by zero')
+    return a / b
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diff --git a/utils/string_utils.py b/utils/string_utils.py
new file mode 100644
index 0000000..253d707
--- /dev/null
+++ b/utils/string_utils.py
@@ -0,0 +1,10 @@
+def capitalize_first_letter(s):
+    """Capitalizes the first letter of a string."""
+    if not s:
+        return s
+    return s[0].upper() + s[1:]
+
+
+def reverse_string(s):
+    """Reverses the given string."""
+    return s[::-1]
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