A common scene: Ranma returns from visiting Ukyou, and Akane accuses him of cheating on her. This time, however, Kasumi snaps, informing the family of who the REAL adulterer is.
Akane has accused Ranma of cheating on her again two years after Ranma's arrival. This is normal. What is NOT normal is Kasumi snaps, and promptly starts screaming her head off, informing the family of who the REAL adulterer is! Uh oh! Oneshot.