Gun x Sword: Friday and Saturday

An angry Carossa raises his fists while Melissa stands behind him

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


Love Lab: A Study of Contrasts

Yuiko Enomoto, sitting on a couch in a living room, holds a magazine in one hand and her hair in the other. Her brother stands near her, looking surprised.

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

Saikin, Imouto no Yousu ga Chotto Okashiinda ga: Grrr!

A close-up of Shoutarou Torii and Moa Torii baring their teeth at one another from opposite sides

Shoutarou Torii and his little sister, Moa, do not get along. He finds her rude and mean most of the time, especially when she calls him “baldy”, while she considers him to be loud, annoying, and shamelessly perverted. That said, he won’t hesitate to protect her if she’s in trouble.
From the anime series Saikin, Imouto no Yousu ga Chotto Okashiinda ga. (Recently, My Sister is Unusual)