Living alone as a single office worker, I had my regular sexy girlfriend from a dating app come over. She goes by Hikaru, and although she'd only experienced ordinary sex before we met, after repeated encounters, her hidden erotic side started to emerge. Today, despite having a date planned with her boyfriend, she suddenly came to see me. She arrived angry, puffing her cheeks saying, "You called me over so suddenly even though I have a date with my boyfriend later!"—but secretly, she was wearing sexy lingerie underneath. Deep down, she wanted to feel that I satisfy her more than her boyfriend ever could. And perhaps, she even hoped to become my real girlfriend…