Tanjiro, Zenitsu, and Inosuke go on their first mission together and venture to Mount Natagumo. Too afraid to go up the "spooky mountain" with Tanjiro and Inosuke, Zenitsu stays behind. Tanjiro and Inosuke encounter a mountain laced with spider webs and controlled by Spider Demons. These Demons have already dispatched countless Demon Slayers, forcing Kagaya to send in the Hashira as reinforcements.

"Show them your A-O face!" As an innocent child, Ao Horie would unhesitantly proclaim the origins of her name. Now that she is in high school, she is determined to study hard in order to one day escape the influence of her lascivious father, a famous erotic author. However, when the amiable Takumi Kijima confesses to Horie, her mind runs wild with scandalous thoughts. Moans eager to escape, legs crossing, and a warmth spreading through her body, Horie cannot help but misconstrue Kijima's rather pure motivations. To make things worse, no matter how hard she tries to ward off Kijima, his advances do not stop. Now, if only she could just study! [Written by MAL Rewrite]

On a whim, first-year Ayumu Tanaka quits the Kendo Club to join the illegitimate Shogi Club. Urushi Yaotome, the president of the club and a master of shogi, is thrilled to finally have a playing partner. As Ayumu's upperclassman, Urushi endeavors to be his shogi mentor and student role model. Too often, however, she finds herself blushing with embarrassment! Stone-faced and honest, Ayumu sees no issue with calling Urushi "cute." Although Ayumu likes her, he refrains from confessing and promises himself to first beat her in a game of shogi. Through school life and shogi games, the two students have many hilarious and heart-warming adventures. Ayumu enjoys every second with Urushi, but he is still a long way from beating her in shogi. With the commitment he made to himself, will Ayumu ever get the chance to confess his feelings to Urushi?

Haruka and Sora Kasugano are coming home, to a place filled with memories. Having lost their parents in a tragic car accident, the twins resolve to return to the countryside and start life anew at their grandfather's house, the haunt a constant reminder of moments from their past. Greeting them are childhood friends Nao Yorihime and Akira Amatsume, and newcomer Kazuha Migiwa. It is a warm welcome, symbolic of the days that should come. Their peace is merely ephemeral, however, as suppressed emotions, born from vows both newfound and forgotten, start exerting their influence on the twins' new lives. And deep down, a dark secret, only known to them, begins to unshackle. Based on the visual novel by Sphere, Yosuga no Sora not only explores the power of lost memories and true love when the bonds of many become intertwined, but also raises the questions of morality and social acceptance. [Written by MAL Rewrite]