One day, Saito is ordered by his boss to go on a business trip to Hong Kong. I started attending a language school exclusively for working adults to learn Cantonese. There, I met Erina, a Hong Kong lecturer. I was captivated by her beautiful appearance and her breasts. Saito can't stand her unprotected breasts and crosses the line. From that day on, his love affair with Erina begins. Although they cannot speak words, they are connected through their hearts and bodies. Just when I thought this happy sexual life would continue forever...the breakup came unexpectedly...