Sister is like a comfort zone for us. Sister is like a best friend. Sharing each small thing, some fights, caring, loving, and more, there are no words to express the relationship of a good sister. When you feel alone or have some problems in life, a sister helps you to do her best and shows you solutions to defeat problems. Elder sister care & loves you like a mother, while a younger sister loves you like your kid.
Therefore, your sister's birthday is a special day, and you need to give her tons of warm wishes, gifts, flowers, and greeting cards with your love.