The Military Training Instructor Is My Brother

On the first day of school, our military training instructor was all over the school, and our roommate Ye Shu looked like he was bound to win over him. I kindly advised, "Don't waste your efforts, he has a girlfriend." Not only did she not appreciate it, she also said that I was nosy. Later, she caught me eating with the instructor and called me a mistress in public. I hung on the instructor's arm and looked at the woman opposite, "Sister-in-law, will I really become you when I grow up?"