She, the number one hitman in the 21st century, was betrayed by her best friend and killed by her lover. After being hit hard, she finally couldn't take it anymore and committed suicide! When she woke up, she traveled through another world and transformed into a little milk baby. Such a genius has already been spread all over the mainland. But she never thought that it was because of these that she, who had just turned twelve years old, would actually become someone else's wife. He pinched her chin, bloodthirsty... .