連休中、女子たちを呼んで宅飲み！王様ゲームが始まり盛り上がる中、一人だけ超地味な女子が混ざってる！そして最後の命令はボクと地味女が一泊二日の同居生活！？これは気まず過ぎる…。さらに二人きりの王様ゲームがスタートすると、地味女の隠れ巨乳が発覚！さらにエロ過ぎる本性をボクにだけ見せてきて…

During the long weekend, I invited some girls over for a house party! A King's Game started and everyone was having a great time, but there was one super plain-looking girl among them! The final command was for me and the plain girl to live together for two days and one night!? This is so awkward… Then, when we started playing King's Game just the two of us, I discovered the plain girl's hidden large breasts! And then she started showing me her incredibly erotic true nature…