With no money, I'm living in a shared apartment that's been trending lately. My neighbor is a college student named Yuzuki Mona, who came by to greet me. She had a bright smile and a cute voice, saying, "So cuuute!" It's such a lucky break to live under the same roof as such an adorable girl. But I've got nothing to do and spend most of my time reading. One day, I heard something lewd coming from Mona's room—it was moaning. Clearly, it was Mona's voice. Tempted by the sounds of rustling fabric and her moans, I peeked in and saw her just turning on a vibrator. Overcome by pleasure, her legs dangled in the air, twitching awkwardly. How defenseless can she be? Her pussy was already glistening with arousal. Craving cock, she furiously shoved the vibrator in and out, creating a frothy mess. What's going on with her? Such an aggressive girl moving in next door—I've got no choice but to barge right in.