Kamiki-san is a quiet and unassuming person at the office. She strongly pushed me to start dating her colleague. The man is a virgin and is always excited about his first girlfriend. One day during a date, we were caught in a sudden downpour and had to take shelter at her house... When I took off her wet jacket, I discovered that she had hidden big breasts! I didn't know where to look, but my crotch showed me an honest reaction!