The younger sister of a female student and her friends are practicing for a mixer party before graduation! They're adorably toasting with juice and having drinks at home. Then, I, the brother, am forced to join... Of course, it's a mixer party, so we get lively playing various games. Since drinking is okay, I get drunk and start being overly sexual harassing! As they are confused, I tell them that this is what mixer parties are like and they need to get used to it… The girls, swept up by the atmosphere, gradually become more erotic, and even let me put my hand in their panties without resistance! In fact, they're already soaking wet! And then…
