Ranma 1/2, Vol. 17ISBN: 1591162912;
An amnesiac Kuno challenges Ranma to a duel at the beach ? wearing a watermelon on his head! Will another watermelon on the head bring his memory back? Or will Ranma's meddling unleash a fate more terrible than he can imagine? Meanwhile, a special sauce makes Ranma sick, and Ranma learns that to prove they're a loving couple, he and Akane must spend the night in the same room!
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