After drinking too much on Friday night, Saturday morning dawns with a hazy memory. When I wake up, I find my colleague Tsumugi Akari next to me, and my heart leaps. Why am I here? I barely remember what happened yesterday... But as I experience Tsumugi's vulnerability and kindness, all rationality gradually flies away. On Saturday afternoon, we have sex after lunch, sleep, wake up, and have sex again, and before we know it, our bodies are intertwined, and we continue having sex. Sleep, wake up, eat, touch, and have sex again. As we spend the entire weekend together, Tsumugi becomes more than just a colleague; she becomes a sweet partner who arouses my desire.