Watermelon Island Arc

The  is the 42nd story arc of the Ranma ½ manga, spanning three chapter. It was included as part of Volume 19 of the  and volume 17 of the Viz Media tankōbon.

Plot Summary
The Saotomes and Tendos head to the beach once again and Ranma receives a letter of challenge from Kuno. Kuno washes up on the shore in front of Ranma with a watermelon on his head. Kuno appears to have amnesia and does not recognize anyone. However, his personality hasn't changed, and still lusts after the "pig-tailed girl" and Akane. Kuno is also able to flawlessly slice watermelons into many pieces almost instantaneously. Ranma attempts to jog his memory but fails. When Kuno gets hit with a watermelon, he starts chasing Ranma while asking for a date. Unable to transform properly into a guy, she swims out to the Watermelon Island with Kuno close behind her. Once on the island, Kuno persistently pursues Ranma. Meanwhile, Akane releases a door which begins the watermelon training. Ranma sees this and knocks Kuno out with one of the watermelons. When he comes to, Kuno tells Ranma that the challenge letter was actually a love letter written to "the pig-tailed girl".

Major Events

 * Kuno gets an amnesia.
 * Kuno acquires a new skill specialized in slicing watermelons.
 * Kuno and Ranma become stranded on the Watermelon Island.

Characters Introduced

 * No characters were introduced in this arc