An OVA that will be bundled with the seventh volume of the Shinmai Maou no Testament manga, to be released January 2016.

Ririchiyo Shirakiin is the sheltered daughter of a renowned family. With her petite build and wealthy status, Ririchiyo has been a protected and dependent girl her entire life, but now she has decided to change all that. However, there is just one problem—the young girl has a sharp tongue she can't control, and terrible communication skills. With some help from a childhood friend, Ririchiyo takes up residence in Maison de Ayakashi, a secluded high-security apartment complex that, as the unsociable 15-year-old soon discovers, is home to a host of bizarre individuals. Furthermore, their quirky personalities are not the strangest things about them: each inhabitant of the Maison de Ayakashi, including Ririchiyo, is actually half-human, half-youkai. But Ririchiyo's troubles have only just begun. As a requirement of staying in her new home, she must be accompanied by a Secret Service agent. Ririchiyo's new partner, Soushi Miketsukami, is handsome, quiet... but ridiculously clingy and creepily submissive. With Soushi, her new supernatural neighbors, and the beginning of high school, Ririchiyo definitely seems to have a difficult path ahead of her. [Written by MAL Rewrite]

In an Edo-era Japan lush with a variety of sword-fighting styles, Shichika Yasuri practices the most unique one: Kyotouryuu, a technique in which the user's own body is wielded as a blade. The enigmatic seventh head of the Kyotouryuu school, Shichika lives quietly in exile with his sister Nanami until one day—the wildly ambitious strategist Togame barges into their lives. Togame brazenly requests that Shichika help in her mission to collect twelve unique swords, known as the "Deviant Blades," for the shogunate. Shichika accepts, interested in the girl herself rather than petty politics, and thus sets out on a journey. Standing in their way are the fierce wielders of these legendary weapons as well as other power-hungry entities who seek to thwart Togame's objective. In order to prevail against their enemies, the duo must become an unbreakable team as they forge ahead on a path of uncertainty and peril. [Written by MAL Rewrite]

There is no putting it lightly—Tsunayoshi Sawada is just no good. He is clumsy, talentless, and desperately in love with the school idol Kyouko Sasagawa, a girl so completely out of his league. Dubbed "Loser Tsuna" by his classmates, he seems to be the very personification of failure in the guise of a middle-schooler. Tsuna's boring life takes an extraordinary twist when he encounters the mysterious Reborn, who happens to be a hitman... and shockingly, a baby! Sent from the strongest Mafia family in Italy, Reborn is assigned the daunting mission of preparing the dull middle schooler to succeed the ninth boss of the notorious Vongola family, who is on the brink of retirement. The dull boy has a grueling road ahead, but with the help of his new criminal affiliates and his peculiar home tutor, perhaps even Loser Tsuna can achieve greatness. [Written by MAL Rewrite]