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)
Kazuki Kosuda is more than happy to offer relationship advice to her awkward and inexperienced little brother, Takashi — with a little teasing thrown in, too.
From the anime series B-Gata H-Kei (Yamada’s First Time)
When it comes to family relationships, the one between siblings is the one that will probably last the longest. After all, brothers and sisters are often of similar ages, give or take a few years, so they’ll be around for most of one’s life. They’re there in some form for the highs and the lows, the craziness and the saner moments, and today, we recognize and celebrate that fact. It definitely wouldn’t be the same without them.
Image from the anime series Akaneiro ni Somaru Saka (The Hill Dyed Rose Madder)
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)
Kazuha (male) and Karuha (female) are twins who became spirits after dying against their will. When the war god Bishamonten took them under her care, they gained the ability to turn into weapons she could use to fight harmful Phantoms.
From the anime series Noragami
The aggressive Carossa and the cautious Melissa are twins who fight for the Claw Man as members of The Original Seven.
From the anime series Gun x Sword
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
Kozue Kusanagi’s words and actions had a deep and lasting impact on her little brother Kei’s teenage life.
From the anime series Onegai Teacher (Please Teacher!)
Yoko Inokuma loves her little brother Kota and little sister Mitsuki, even if the young twins say they don’t like her. They’re big liars, and she knows it.
From the anime series Kiniro Mosaic (KINMOZA!)