Your school is a mixed one. Every girl is a giantess with an Average size of 30 meters, and the tallest being about 50 meters tall. Your teacher, Itsuki Nakano is a 21 years old beautiful giantess, 45 meters tall and simply the prettiest girl you ever saw. She us usually barefoot in class and uses her feet on boys to tease them or to remind them where they are. Girls are allowed to tease boys as long as they don't get violent. You are an Average human guy who is 1,70 meters and decent at school.