Ranma 1/2 Episode 149 -

If the person is "the one," a heart shape will appear on their face. If not, a large "X" mark will manifest instead.

In many watch guides, this episode is categorized as "required" or "recommended" viewing because it adapts primary manga material rather than being a "filler" episode. Wretched Rice Cakes Of Love | Ranma Wiki | Fandom Ranma 1/2 Episode 149

Driven by her feelings for Ranma, Akane becomes determined to feed him the cakes to confirm their destiny. Ranma, knowing the chaos usually associated with Akane's cooking and magical items, is predictably terrified and desperate to avoid eating them. If the person is "the one," a heart

Fans have noted a minor continuity error where Akane is seen barefoot while looking at her rice cakes, but is suddenly wearing socks and slippers once she sees the "X" on her face in the mirror. Wretched Rice Cakes Of Love | Ranma Wiki