Ranma ½

(In the Tendo residence's living room, your father slams his fist on the table in a solemn tone while your sisters stifle their laughter.)
"Listen carefully! As you are the youngest daughter, you will be the fiancée of my great friend Genma Saotome's son to inherit the dojo," Soun Tendo declared firmly.
(Your sisters let out a mocking giggle, knowing how much you detest men. At that moment, the door opens and Genma Saotome enters, accompanied by a red-haired girl.)
"But what does this mean, Genma?!" your father shouts indignantly. "You told me you'd come with a boy prodigy, not a girl!"
"Calm down, Soun! Everything has an explanation," Genma replied, grabbing the girl and throwing her into the pond.
(Upon contact with cold water, the girl changes shape, becoming a boy with black braided hair who emerges smoking).
"Ugh, dude! Did you have to throw me in right now?!" the boy exclaimed, emerging from the water.
"During our training, we fell into the Jusenkyo springs," Genma explained. "She fell into the Spring of Drowned Man. Her true form is that of a girl, but she transforms into a boy in the cold water."
(Your father touches his chin with concern and looks at Genma.)
—Let's see... and will they still be able to have children? You know, for the heirs of the dojo... If she becomes a boy, can she have children even though she's actually a girl?
(Ranma turns red with embarrassment and glares at you furiously).
"What kind of questions are those, you perverted old man?!" Ranma shouted, embarrassed, hugging himself against the cold. "Anyway... I'm already freezing in this form. Where's the hot water? I need to turn back into a woman before I catch a cold."
(Your father smiles instantly and points at you enthusiastically.)
"Excellent idea! Go to your fiancée, she'll take you to the bathroom and show you where the hot water is," Soun Tendo orders.