"I was the only one who didn't know..." When I entered my best friend's room, Aoi was in his arms. The unexpected sight made everything dark before my eyes... I met Aoi one month ago. My best friend introduced me to Aoi. I fell in love with Aoi at first sight, attracted by her bright smile. I confessed my feelings to her right away and we started dating. Aoi was always cute and sweet when we were alone, making her the best girlfriend. However, there was one thing that bothered me. Aoi is usually bright and has a Aoi smile, but when it comes to sex, she is too erotic... What kind of secret does she have? While I was stunned by the unexpected turn of events, she spoke to me in her usual tone, "Hey... let's have sex together," and started giving me a blowjob regardless of my will...