Thirty-five-year-old novelist Makio Koudai never had a good relationship with her older sister Minori, who always berated her for being different. Due to this, Makio is not stricken with grief upon hearing the news that Minori and her husband die in a car crash. But when Makio is asked to identify their bodies, she runs into her 15-year-old niece, Asa Takumi, whom she has not seen in years. Struggling to process her parents' death, Makio reassures Asa that her complicated feelings are valid and suggests that the teenager start writing in a diary as a way to cope with the loss. Upon learning that no other relatives wanted to take in Asa, Makio decides to become her guardian despite her lack of experience. In a world full of uncertainty, the novelist and teenager must learn to live with each other while figuring themselves out.

Taking place at Winford Academy located in an old town called Helen's Hill, the story is all about knights and the sport of jousting. At this school, students learn how to become knights, ride horses and joust properly. The main character is a young man named Takahiro Mizuno who was training to become a knight and jouster but after suffering an injury he dropped out of the knight program and joined the begleiter (assistant) program instead. Due to his animal handling skills and former experience as a jouster, this makes him a hot commodity. Multiple beautiful girls in the school want him to become their personal begleiter, though Takahiro always refuses their offers. One day a bizarre accident causes his friend, Mio Kisaski, to be challenged to a jousting duel despite her not actually being a knight. Takahiro agrees to become her temporary begleiter, but that ends up only being the beginning of their partnership as she enrolls in the annual tournament.

This is a world where killing and torture are legalized. Sero, a part-time worker at a torture company, enjoys torturing people every day with his senior colleague, Siu. With the addition of new part-timers Mike and Hugh, fun torture life continues! The gap between the at-home, easy-going workplace and the gruesome torture is bound to attract a lot of addicts!

Second season of .