Suguru Aizawa is a rising soccer player admired by both his little brother, Kakeru, and his little sister, Mito. Kakeru also has a talent for the game and enjoys the sport, but his lack of motivation to play annoys Suguru.
From the anime series Area no Kishi (The Knight in the Area)
Sora and his little sister Shiro may be shut-ins in real life, but in the gaming world, they are the top-scoring, undefeated entity known as “Blank.”
From the anime series No Game No Life
Lottie Gelh’s beloved older brother was a soldier who often had to leave home, and she always missed him when he was away.
From the anime series Soukou no Strain (Strain: Strategic Armored Infantry)
Kanji Sasahara and his little sister, Keiko, are quite different. He’s a shy anime, manga, and video game fan, whereas she’s a blunt talker who’s fashionable and leads a very social life.
From the anime series Genshiken
In order to avoid attending a school known for having Japan’s worst delinquents, Hikaru Onigashima switches places with his younger twin sister, Hinako Nakayama. Fortunately, she’s good at hand-to-hand fighting.
From the anime series Kenka Banchou Otome: Girl Beats Boys
Kyouya Shinomiya’s female friends enjoy teasing him for his passivity, but they also like his kindness and talent for brushing their hair. Of course, his little sister, Kasumi, liked him for this first (and still does).
From the anime series GJ-bu (GJ Club)
Junichi Nagase was once as a middle school delinquent known as Geno Killer, but he’s since reformed thanks to the love and efforts of his little sister, Minato. Now, he’s a normal high school student who occasionally gets teased about his past by friends.
From the anime series Akaneiro ni Somaru Saka (The Hill Dyed Rose Madder)
Aruto Kirihara loves the Alice’s Adventures in Wonderland novels so much that he’s writing his own sequel. His little sister, Kiraha, is jealous of the fact that his hobby takes his attention away from her, so she becomes an Alice User to find The Eternal Alice for him and to make her own wish come true.
From the anime series Kagihime Monogatari Eikyu Alice Rondo (Key Princess Story: Eternal Alice Rondo)
Ravus Nox Fleuret, the former prince of Tenebrae, feels differently about the Lucian kings than his younger sister, Lunafreya, does.
From the video game Final Fantasy XV
The son and oldest child of the Enomoto household is a NEET (Not in Education, Employment, or Training) who stays home all day long, whereas the younger daughter, Yuiko, is the former president (and current vice president) of her school’s student council. She’s kind and understanding to him but hot-headed toward pretty much everyone else. When they were children, he teased her a lot, but as an adult, he’s a masochist. Really, the only thing they have in common is their long red hair.
From the anime series Love Lab