朝起きると、隣には下着姿で眠る同期の七海！？なんでこいつが…？飲み会で泥●したボクには全く記憶がない！すると目を覚ました七海から「昨日エッチしちゃったね！」と衝撃の告白！嘘だろ！？普段口うるさい七海がなぜか嬉しそう？再度チ○ポを求められるとボクも興奮を抑えることはできず…

When I woke up this morning, my colleague Nanami was sleeping next to me in her underwear!? Why is she here…? I had absolutely no memory of it, having gotten completely drunk at a drinking party! Then Nanami woke up and made a shocking confession: "We had sex yesterday!" No way!? Nanami is usually so nagging, but for some reason she seemed happy? When she asked for my dick again, I couldn't control my excitement either…