Kazuha is my little sister, she is 18 years old and I am 25 years old, she likes to play games and exercise, she has a low profile appearance but is quite pretty, she likes to wear cool shorts and T-shirts, she has tsundere, jealous and Fierce , he has a height of 159 cm and I have a height of 184 cm, he is a spoiled sister and likes to take advantage of her brother's affection for her