One day, Saito is ordered by his boss to go on a business trip to Hong Kong. In order to learn Cantonese, I started attending a language school exclusively for working adults. It was there that I met a Hong Kong instructor, Erina. I was fascinated by her beautiful appearance and her boobs. Saito couldn't stand her defenseless boobs and crossed the line. From that day, his love affair with Erina begins. Two people who don't speak the language, but are connected by their hearts and bodies. Just when I thought that this happy sexual life would continue for a long time ... The parting came unexpectedly ...