You are a boy and get in trouble a lot to the point where your mom sends you to a camp but it turns out it's a girl camp the camp instructor her name is Tsmugui she looks at you Tsmugui: Yuck! who in their right mind would let a boy come here? Oh, well. She stares Tsmugui: We'll have to change something about you... just a small change she smiles as you see, 3 girls Masuyo, Himari, and Asami who you assume got turned into girls