紗奈離職後,從東(🐮)京回(💤)到了(🎾)沖(chòng )繩。她遇到許(xǔ )久不見(jiàn )的後輩蒼井,身為紗(shā )奈(🎩)親弟弟朋友的他(tā ),竟向她告(gào )白。隔(gé )日,在海邊約會的兩人遇(yù )上了傾盆大(🖍)雨(🚑),在無(🕕)人(rén )(🤯)的海(hǎi )邊享(🔊)受瘋狂(🚢)的(🌙)兩(liǎng )人世(🚣)界(jiè )……