Riyo appears! Vrrrrr! Vrrrrr! Only I, her boyfriend, know the secret that the class idol hides! She looks pure and is popular with everyone, but secretly has a naughty side! Though she appears innocent and incredibly cute, after we miraculously started dating, she gradually began revealing her erotic side! At her home, where we always studied together, she suddenly grabbed my hand tightly and confessed, "You probably think I'm a serious girl who doesn't do stuff like that...!" No wonder—she's deeply in love with me, and suddenly kissed me! Despite it being our first kiss, she passionately thrust her tongue into my mouth, making my heart race! Though she seems perfectly innocent, she's actually an extremely horny and aggressive girl in bed! I boldly groped her breasts without hesitation, twisting and teasing her nipples, making her highly sensitive and extremely aroused! When I stimulated her ass and pussy, she climaxed repeatedly, desperately craving my cock! She even asked, "Can I lick it?" and begged me to enter her! She guided my cock inside herself, riding me cowgirl-style while moaning passionately, making my heart pound! She kept saying, "Let's have sex every day from tomorrow," "I want to try all kinds of dirty things—do it every day! I can do anything for you!" From that day on, we had sex daily—using pink vibrators, electric massagers, blindfolds, paintbrushes... She's an insatiable, deeply masochistic girl! Even when studying with her best friend, she had a remote-controlled vibrator attached to her pussy, and I'd secretly turn it on during study sessions! She'd twitch and squirm, desperately trying to hide her reactions—so damn cute! Her best friend, who doesn't even know they've kissed yet, would be shocked if she found out the truth... But she pleaded, "Please don't talk about our dirty stuff at school," while also whispering, "Keep tormenting me more and more," so I'll continue dominating and punishing her endlessly!