Sudden Hate!!

Totsuzen dai-kirai!! (突然大嫌い!!) is the 230th chapter of the manga it is also the first chapter of the Reversal Jewel Arc.

Cologne lets Shampoo choose a piece of antique jewelry from her collection. Shampoo chooses a brooch from a box, not knowing about its effect turning her love for Ranma into hate.

Cast in Order of Appearance

 * Shampoo (human)
 * Akane Tendo
 * Ranma Saotome (male)
 * Hiroshi and Daisuke
 * Sayuri
 * Cologne
 * Mousse (human)
 * Kasumi Tendo

Trivia

 * The Reversal Jewel is also referred to as the Contrary Jewel, according to the first OVA.