Me, my girlfriend, and her friends Urara and Hina often hang out together. - When she wasn't looking, Urara seemed to be interested in me, blinking at me and rubbing her body against me. - One weekend, my girlfriend was going on a family trip, so I didn't see her for three days. - Then, on the day she left, Urara and I ended up having cheating sex without either of us inviting it. - Then Hina breaks in and my house turns into a temporary sex room. - The time spent having sex with Urara and Hina, two people with different charms, passed in the blink of an eye, and the day when she would return was drawing closer.