Sister’s Diary

“It’s nice, the scent of my sister.” The closest person to me is my younger brother, who’s 18 years old. My sister, who indulges in dangerous pleasures during summer months, is 22 years old. In a room in a resort hotel… June doesn’t care about her younger brother, Lin Taro. She enjoys herself in a very attractive outfit. Lin Taro is a handsome guy who works as a host at a club. He seems to have no problems with women. But lately, he’s started to notice something interesting… There’s a man named Yoshida, a construction designer, who tries to flirt with June. Once, June managed to escape from his aggressive advances. But when she received a call at home, she ended up having sex with him using ice cream sticks. Lin Taro was furious when he saw this happen. But it didn’t take long for June and Yoshida to get together. Yoshida grabbed June’s buttocks and started to lick them. He’s really skilled at that. But then, Yoshida’s wife, Hiyoko (Kuraki), found out about this. Lin Taro, who has always had feelings “What’s wrong with liking both women and men?”… Or is it a taboo that needs to be broken? A shocking story that depicts the desperate situation of two siblings who are in a relationship where they can’t get past each other.