High school biology teacher Tetsuo Takahashi may look like your average everyday instructor, but beneath his gentle appearance lies something less ordinary: his fascination for the "Ajin," more commonly known as "Demi." Although these half-human, half-monster beings have integrated into human society, Takahashi believes that much about them will remain unknown unless he interacts with them firsthand. Demi-chan wa Kataritai follows Takahashi's daily life in Shibasaki High School together with his three Demi students—Hikari Takanashi, an energetic vampire; Kyouko Machi, a gentle dullahan; and Yuki Kusakabe, the shy snow woman. Along the way, Takahashi also meets fellow teacher Sakie Satou, a succubus with an aversion towards men. To fulfill his goal of learning more about the Demi, Takahashi decides to conduct casual interviews with the girls to learn more about their abilities, psyche, and interaction with human society. As Takahashi strengthens his bond with his students, he soon discovers that the Demi are not as unusual as he initially believed. [Written by MAL Rewrite]

Centuries after the events of Saga Brave, a third race called the Mauve has emerged alongside Humans and Mazoku. Identified by their purple blood and immense intelligence, the Mauve are shunned by the other two races and are viewed as a threat to the peace of the world. Having experienced this prejudice first-hand, a teenage Mauve named Galette Revolt journeys forth to find a way for all races to understand each other by playing Battle Spirits. However, other factions from each race aim to maintain the peace/reform the world through more nefarious ways...

Out in the countryside stands a sweet shop run by the Shikada family for nine generations: Shikada Dagashi, a small business selling traditional Japanese candy. However, despite his father's pleas, Kokonotsu Shikada, an aspiring manga artist, adamantly refuses to inherit the family business. However, this may start to change with the arrival of the eccentric Hotaru Shidare. Hotaru is in search of Kokonotsu's father, with the goal of bringing him back to work for her family's company, Shidare Corporation, a world famous sweets manufacturer. Although the senior Shikada initially refuses, he states that he will change his mind on one condition: if Hotaru can convince Kokonotsu to take over the family shop. And so begins Hotaru's mission to enlighten the boy on the true joy of delicious and nostalgic dagashi! [Written by MAL Rewrite]

On a remote island far from the mainland named Urashima, a man washes ashore, with no recollection of his name or homeland. What he does recall, however, is that he is a time traveler with a mission: to save a certain girl from harm. As nightfall arrives, he meets Rinne Ohara, a girl who sings a tune that reminds him of a specific name—Setsuna—and decides to use it as his own. Knowing another "Setsuna" herself, Rinne takes him to her household as a servant, hoping that he is the same one she remembers. On the other hand, Setsuna continues to learn more about Urashima, desiring to identify his lost past. He comes to know about the island's folklore, its three great families, and the endemic disease that prevents anyone afflicted from stepping out into the daylight. As the mysteries of his missing memories and Urashima itself unfold, Setsuna must remember his purpose and fulfill his mission as soon as possible. But, as he witnesses the myriad of troubles plaguing the island, Setsuna begins to question—is his temporal displacement merely an effort to change a single girl's fate? [Written by MAL Rewrite]