Gun x Sword: The Journey from Evergreen

Michael Garret and Wendy Garret sitting next to each other

When Michael Garret is kidnapped from his hometown, his little sister, Wendy, goes on a journey to find and rescue him.
From the anime series Gun X Sword

Overlord: Sixth Floor Guardians

Aura Bella Fiora and Mare Bello Fiore are overjoyed

Aura Bella Fiora (in red) and her younger twin brother, Mare Bello Fiore (in blue), are powerful dark elves who serve their master, Momonga, with unswerving loyalty.
From the anime series Overlord

Marvel’s Jessica Jones: The Upstairs Neighbors

Robyn and Ruben staring out from a partially opened door

Fraternal twins Robyn and Ruben live together in a New York City apartment building, sometimes baking banana bread but mostly arguing loudly.
From the Netflix series Marvel’s Jessica Jones

Big Order: Tell Me A Story

Sena Hoshimiya and Eiji Hoshimiya as children reading a manga together in bed

As a child, Eiji Hoshimiya was inspired by a manga to take over the world so that his little sister, Sena, could be safe.
From the anime series Big Order