One day, by chance, I reunited with my old gaming buddy Mahiro, whom I hadn't seen since our student days. She had grown up quite a bit and was looking much cuter than before. As we went out for drinks, our conversation naturally turned towards sex, and we found ourselves really connecting. We ended up at a hotel, where it became clear that our bodies were made for each other! A semi-exclusive relationship without any strings attached - living together while having lots of casual sex.

ある日偶然、学生時代ゲーム仲間だったまひろと運命的な再会をした。すっかり垢ぬけて可愛くなっていたまひろだが中身は気さくで話しやすいまま。そのまま飲みに行く流れになりSEXの話題で意気投合。自然な流れでホテルに行くと…体の相性がバッチリすぎた！セフレ以上恋人未満。ヤリまくり半同棲生活、スタート。