Hikaru Amatsuga's days of tranquility come to a sudden end when he rescues Alma, a mechanical arm crying for help. Alma fuses with his jacket, introducing Hikaru to the world of mechanical arms: mysterious, sentient weapons that normally become a part of their users' bodies. Forced to flee for his life, Hikaru is eventually captured by Aki Murasame, a twin mechanical arms user working for ARMS, an organization that protects the machines against unethical treatment. The Kagami Group, a nefarious organization that treats mechanical arms as mere tools, seeks to recover Alma. Hikaru is deemed a failure by ARMS for his lack of natural predisposition to be an mechanical arm wielder, so Aki is assigned to be his bodyguard. But Aki is defeated by Jun Kagami, who cruelly tears out her two mechanical limbs, condemning the girl to a slow death. Unwilling to abandon Aki to her grim fate, Hikaru miraculously awakens his power and neutralizes Kagami. Now a full member of ARMS, Hikaru is determined to unravel the truth about mechanical arms and protect his newfound friends and allies.

In the mysterious future, crystalline organisms called Gems inhabit a world that has been destroyed by six meteors. Each Gem is assigned a role in order to fight against the Lunarians, a species who attacks them in order to shatter their bodies and use them as decorations. Phosphophyllite, also known as Phos, is a young and fragile Gem who dreams of helping their friends in the war effort. Instead, they are told to compile an encyclopedia because of their delicate condition. After begrudgingly embarking on this task, Phos meets Cinnabar, an intelligent gem who has been relegated to patrolling the isolated island at night because of the corrosive poison their body creates. After seeing how unhappy Cinnabar is, Phos decides to find a role that both of the rejected Gems can enjoy. Houseki no Kuni follows Phos' efforts to be useful and protect their fellow Gems. [Written by MAL Rewrite]

The stage of Kuroshitsuji II opens on the life of Alois Trancy, the young heir to the Trancy earldom. Though he is privileged now, such was not always the case for the hot-tempered boy. Kidnapped and forced into slavery at a young age, he was eventually rescued and returned home, only to have his beloved father pass away soon after. However, there are certain individuals who doubt Alois' story and legitimacy. And rightfully so, because things in the Trancy household are not as they appear, starting with Alois' black-clad butler with supernatural abilities, Claude Faustus. Who exactly is the mysterious Claude, and what connection does he have with Alois? Amid the web of lies and deceit running rampant in the mansion, the bond between Alois and Claude will be tested as hell itself arrives at their doorstep. [Written by MAL Rewrite]

After dying of overwork in Japan, Dahlia is reborn into a world filled with magic. Raised by a master of magical toolmaking, she develops a passion for the craft and becomes engaged to her father's apprentice. Before her father can see her wed, however, he suddenly passes away. As if this weren't enough, on the day before their wedding, her fiancé announces that he's in love—but not with her! Dahlia finally realizes she needs to live for herself. She vows to be her own woman from now on and devote herself to her craft, even if it's not quite the quiet life she was hoping for! From a chance encounter with a knight to starting her own company, there are challenges aplenty on the horizon. But this young craftswoman is no longer a shrinking violet—she's Dahlia, and she's ready to bloom.