In between slaying monsters and negotiating with neighboring countries, Rimuru Tempest has his hands full attending to his kingdom alongside day-to-day matters. But whether it's expanding the farms in the summer heat or shoveling snow in the chilly winter, no task is too big for Rimuru and his friends!

Denizens from the Crimson Realm continue to infiltrate Misaki City and steal life energy from humans. To combat this threat, Flame Hazes are tasked with saving humans from losing their existences. But while it is a Flame Haze's duty to protect humans, Shana—the Flame-Haired Burning-Eyed Hunter—seems to be focusing her attention on one human in particular: Yuuji Sakai, a teenage boy who was unwittingly dragged into the fight between Crimson Denizens and Flame Hazes. Since her first encounter with Yuuji, Shana has started to see him as more than just a friend. In fact, Yuuji wonders if Shana might have revealed her feelings to him once before, but it is difficult for him to confirm due to her hot-and-cold personality. Nonetheless, their days pass like any other, until a new transfer student arrives at their high school—one who bears a striking resemblance to an old enemy. Yuuji and Shana have no time to dance around their feelings for each other; while their adversaries from the Bal Masqué organization plan their next attack, the two must keep their guard up as they explore the origin behind the coveted magical object within Yuuji's body, the Midnight Lost Child.

Under Nariyuki Yuiga's devoted tutelage, his classmates Rizu Ogata, Fumino Furuhashi, and Uruka Takemoto are finally pulling average test scores on their worst subjects. But time is ticking, and there is still a long way to go before the three geniuses of Ichinose Academy are ready for their upcoming university exams. Meanwhile, the girls still struggle to balance the pursuit of their dreams with their growing affections for their unsuspecting tutor. Joining them are Mafuyu Kirisu, a teacher with strong views about education and talent because of her past as a rising figure skater, and Asumi Kominami, a graduate from their school aiming to attend a national medical university. With these two additions, the group of six is livelier than ever before. Completely caught up in hilarious antics with his new friends, Yuiga finds that his last year of high school now includes a lot more than just going to class and studying.

Kohachi Inugami, a detective who specializes in the occult, arrives at a remote village in the Japanese countryside, tasked by a hostess at a local inn to investigate a string of incidents involving rotting and mutilated livestock corpses that have been appearing for seemingly no reason. While surveying, Inugami notices a peculiar young boy working in the fields. Evaded by his peers and called Dorotabou for his stench, the young farmhand is surprised that anybody would take an interest in him. Inugami, piqued with curiosity, enlists Dorotabou in helping him with the investigation, despite scorned looks from the villagers. Unbeknownst to Dorotabou, this investigation will reveal a strange new world to him—one of the beast-like entities known as Kemono existing in tandem with humans—along with breathing new purpose into his previously empty life.