Noriko Rikimaru

During his summer vacation, middle school student Nagasumi Michishio travels to the Seto Inland Sea. One day, while swimming at Mio Sun Beach, his leg suddenly cramps. No one is close enough to notice his desperate screams for help, and so he sinks into the ocean, where he is left to drown alone. Just as he loses consciousness, however, a mermaid appears and saves his life. That night, Nagasumi is visited by his savior, a girl who introduces herself as Sun Seto—a mermaid from a yakuza family. As it turns out, under mermaid law, a mermaid whose identity is revealed to a human must be punished by execution. To avoid this harrowing outcome, the Seto family propose a solution: Nagasumi must marry Sun or die at the hands of Gouzaburou, Sun's father and boss of the Seto clan. Faced with no other option, Nagasumi takes her hand in marriage. Now, the newlyweds face the difficult task of keeping their relationship secret. Between Gouzaburou's unending attempts on Nagasumi's life and the eccentric antics of a slew of antagonists, a genuine and innocent love blossoms between the pair as they adapt to their new life. [Written by MAL Rewrite]

When the sky turns red, the moon turns black, and monsters begin roaming the streets, Satsuki Kakeru is at a loss for what to do. Along with his best friend Yuka, they try to decipher why they have been sent to this strange world, which is seemingly empty aside from themselves. However, when the "Red Night" ends, Kakeru and Yuka believe it was all a dream—until it happens again, and they are left in a dangerous situation. They meet four others in the same predicament: Kusakabe Misuzu, an expert swordswoman; Tachibana Kukuri, a strange mute girl who looks uncannily like Kakeru's deceased sister; Hirohara Yukiko, a lively young girl whose personality reverts to that of a cold killer when her glasses are removed; and Tajima Takahisa, a young pyrokineticist. As the six of them band together to survive and discover what this mysterious world is, things take a turn for the worse as six shadows appear before them... [Written by MAL Rewrite]

The 1920s was a decade of great change and upheaval, with monstrous demons appearing across America. To combat this menace, the holy organization known as the Order of Magdalene was established. The organization's New York branch is home to the young and reckless Sister Rosette Christopher, as well as her partner Chrno. Tasked with the extermination of demonic threats, the renowned team is excellent at their job, despite causing extensive collateral damage on their missions. However, both Rosette and Chrno are driven by their dark pasts. Through exterminating demons, Rosette hopes to find her lost brother Joshua who was taken by the sinner and demon, Aion, with whom Chrno also shares a bloody history. The two of them must fight off the increasingly dangerous demonic menace and discover its source, while continuing to search for the truth behind Joshua's disappearance. [Written by MAL Rewrite]

Traumatized by school, Jun Sakurada spends his days at home as a shut-in, purchasing things online, only to send them back before the free trial period ends. So when a note appears on his desk, asking whether or not he would wind something, he assumes it was something he ordered and carelessly circles "yes," changing his life forever. A box arrives with a wind up doll inside, but this is no ordinary toy: after Jun winds her up, she begins walking and talking as if a normal person. With a haughty attitude, she introduces herself as Shinku, the fifth doll in the Rozen Maiden collection, a group of special dolls made by the legendary dollmaker Rozen. These sisters must battle each other in a competition called the Alice Game with the help of a human to ensure victory. The winner becomes Alice, a real girl who is worthy of meeting their creator. As more sentient dolls end up taking residence in Jun's house, and a foe from Shinku's past makes her appearance, Jun's life becomes far more complicated than he ever thought possible. [Written by MAL Rewrite]

Ayumi Mamiya is a witch cursed to lose her powers and only one boy can break the spell. Haruo Yoshikawa thinks he is a normal boy but unknown to him his three sisters have magical powers and keep him protected and ignorant about the existence of magic. Now Ayumi must wake up Haruo's latent powers to save herself but his sisters will have none of that. (Source: ANN)