Summer of my sophomore year of college. I was still unfamiliar with life in the city, so I decided to go to my aunt's house in the countryside during the Obon holiday. There, I met my cousin Tsubasa, who had fallen in love with me when I was a child, for the first time in more than 10 years. She is married and has a family, but she is still as beautiful and charming as she used to be... That plump body... sweating... smell... sex-attractive I can't control my lewd mind... The heat is intense every day, followed by tropical nights. Forbidden vagina ejaculation intercourse covered in sweat in the sweltering heat.