Gaijin tsuma X sukebena imôto: Marumie ero sawagi

Yohei and Rosalie met at a pub and entered into an international marriage. However, Yohei was left utterly exhausted by Rosalie’s uninhibited nature and insatiable appetite for intimacy. One day, his younger stepsister, Mai, came to visit him; although they had long been separated following their parents' divorce, Mai …