Ally of Justice (2008)

Fifteen-year-old Drake and Josh are schoolmates, but not close friends. Drake views Josh as weird and a bit of a goof. So, imagine Drake's shock when he finds out that this "goof" is about to become his new step-brother and roommate when his mother marries Josh's father. A spin off of The Amanda Show.

The Shiunji family with their seven children reside in a mansion within Tokyo’s Setagaya ward. The eldest son, Arata, is tired of being pushed around by his five sisters and daydreams of a life without them. That is, until Arata’s father reveals a shocking truth—Arata isn’t biologically related to his sisters! The siblings’ relationships will be tested as they navigate life in this new light.

After a demon attack leaves his family slain and his sister cursed, Tanjiro embarks upon a perilous journey to find a cure and avenge those he's lost.

Everyday things make up the fabric of life—whether it's making friends, going to school, trying to make money, or celebrating a holiday. Ichigo Mashimaro is a heartwarming series that follows the daily lives of Chika Itoh, her sister Nobue, and her friends Miu, Matsuri, and Ana.

Itsuki Hashima is a light novelist obsessed with little sisters, strictly focusing on them when he writes his stories. Despite his personality, he's surrounded by a tight circle of friends, including a beautiful genius writer who loves him, a big-sisterly college classmate, a fellow male writer, a sadistic tax accountant, his editor, and Chihiro, his perfect younger step-brother who takes care of the housework and cooking. As the story progresses, the underlying conflicts of dreams and goals surface, as each character attempts to achieve their dreams, in their own way.

People are not always who they appear to be, as is the case with Umaru Doma, the perfect high school girl—that is, until she gets home! Once the front door closes, the real fun begins. When she dons her hamster hoodie, she transforms from a refined, over-achieving student into a lazy, junk food-eating otaku, leaving all the housework to her responsible older brother Taihei. Whether she's hanging out with her friends Nana Ebina and Kirie Motoba, or competing with her self-proclaimed "rival" Sylphinford Tachibana, Umaru knows how to kick back and have some fun! Himouto! Umaru-chan is a cute story that follows the daily adventures of Umaru and Taihei, as they take care of—and put up with—each other the best they can, as well as the unbreakable bonds between friends and siblings.

The story begins with Keita Suminoe, a male third-year junior-high school student studying for his high school entrance exams. He is living in a home with his older twin stepsisters, Ako and Riko, who share no blood relation to him, and they help him prepare for his exams. Even though he initially dislikes himself for it, he begins to become attracted to his two step-sisters, and his two parents encourage him to eventually get married to one of them.

A hedonistic jingle writer's free-wheeling life comes to an abrupt halt when his brother and 10-year-old nephew move into his beach-front house.

Arata Kaizaki (27) quit the job he landed after graduation in only three months. His life did not go well after that. Now his parents are threatening to stop sending money, and want him to come back to the country. He has no friend or girlfriend to share his troubles with...as he hits rock bottom a strange man named Ryou Yoake appears. He invites Arata to join a societal rehabilitation program for NEETs called ReLife. This program uses a mysterious drug to make him look younger, and sends him back to high school for a year...

Ah, high school. Is there any better place to start fresh after a horrible middle school relationship? Nope! Not unless your ex ends up at the same school as you and is now your stepsibling. What was supposed to be a sanctuary of peace where I could avoid ever seeing her again has become a living nightmare! Everywhere I look, I see her—in my house, in my school, in my class. There's no escape! She even claims that she's the older sibling. Like hell she is! But I won't lose to her. After all, I'm the older brother in this new family situation. That's right, we're family now. No matter how much we may have thought we loved each other before, we saw one another's true colors and realized we weren't meant for each other. That's why even though we may keep up a buddy-buddy sibling act for the sake of our parents, things will never go back to the way they used to be.