One day, Saito was ordered by his boss to go on a business trip to Hong Kong. In order to learn Cantonese, he started attending a language school exclusively for adults. There, he met Erena, a beautiful Chinese teacher from Hong Kong. He couldn't resist her stunning looks and succumbed to her alluring breasts. From that moment on, they began their passionate affair, connected not just through words but also hearts and bodies. However, their blissful sexual life came to an abrupt end when they were unexpectedly separated...

ある日、斎藤は上司から香港出張を命じられる。広東語を学ぶ為、社会人専用の語学スクールに通い始めた。そこで出会ったのは香港人講師の絵麗奈。美しい容姿とそのおっぱいに心奪われてしまった。彼女の無防備おっぱいに我慢できず、一線を越えてしまった斎藤。その日から絵麗奈との恋仲が始まる。言葉は通じないがココロとカラダで繋がっている二人。ずっとこの幸せな性活が続くと思っていた矢先…別れは不意に訪れてしまい…。