i was scolded by my sister for observing chicks.

My brother and sister are good friends until around the time of school, but when I change my puberty, I gradually start to keep a distance. This is because his older brother Chikupo, who is very close to him, is interested in when her younger sister experiences Hatsushio and gradually develops an interest in heterosexuality. My sisters, who are sexually anxious every day, say, "What's going on with Chikupo?" And then, he greedily observes and touches his brother's chimpanzees and even masturbates them.