You need to login to do this. A gentle leviathan of terrible power. Some writers like pairing up characters of opposite sex and opposite ends of the size spectrum. The height difference goes well beyond One Head Taller, and the tall one is often miyagi russian rapper wife times wider to boot.
Usually, it’s the man who’s bigger. This is an exaggeration with some basis in truth: the median height for males is slightly higher than that for females, and many people choose opposite-sex mates with the “traditional” comparative height. Physical attraction aside, the idea of a big hulking giant showing his soft side for his little lady is popular with many viewers. The relationship is not always romantic or sexual. Sometimes, the girl is a Morality Pet who hangs out with the guy to show he isn’t a brute, or it could just be a platonic friendship. In an action series, the guy may look big enough to break his girl like a toothpick, but she’s likely to be just as deadly as her man.
The inversion of this, which is not as common in real life, is Tiny Guy, Huge Girl. In Beastars Haru the bunny stands at the height of Legosi the wolf’s waist. In Berserk, the exceptionally tall and muscular protagonist Guts has a tendency to form intergenerational friendships with small-statured teenage girls he meets on his journeys. Shirogane is pretty average, Narumi is an enormous kempoist. Kill la Kill has Ira Gamagoori and Mako Mankanshoku. In Eat-Man, protagonists Bolt’s average Girl of the Week’s head hovers somewhere around his chest, and only has a third of his shoulder width.
Of the more shippy variant is Al and Mei, due to Al’s current bound-to-a-frickin-huge-suit-of-armor form. And — before the inevitable comments — Al is only 14 and not that much older than Mei, and he’s also never technically been through puberty since he spent his teenhood so far outside of his physical body and in a suit of armor. Another romantic example is Sig and Izumi Curtis. Sig is well over a head taller than Izumi, and about 2-3 times her width on top of that. Zest and Agito in Magical Girl Lyrical Nanoha Strikers. Zest and Lutecia, as well, but they don’t hang out together as much. Alice in Pumpkin Scissors isn’t exactly tiny, but she looks it compared to Randal, who’s estimated at seven feet tall.
Her height is never given but she is visibly smaller than her brother Hiei, who stands at 147 cm. From the same series is Younger Toguro and his ex-girlfriend Genkai. Renji, who is 188cm or around 6’2″ – she only comes up to his elbow. Shiryuu Kusanagi and Yuzuriha Nekoi in X1999. Non-romantic example: Fuuma Monou and his Ill Girl of a younger sister, Kotori. Riful and Dauf in Claymore, he being a large, mostly unintelligent brute and she being a tiny girl, most noticeable when he’s in his Awakened form and she’s perched in human form on his shoulder. In Hiyokoi, the main character, Nishiyama Hiyori is only 140 centimeters, while her love interest, Hirose Yuushin, is 190 centimeters.