Ranma ½ (1989)

S01E33 Enter Happosai, the Lustful Lecher!

Soun and Genma are filled with dread when their former mentor, master Happosai, makes an unexpected appearance. As the creator of the Anything Goes school of martial arts, his remarkable combat abilities are rivaled only by his insatiable obsession for women's undergarments, causing chaos and embarrassment.