A year has passed since Tooru Honda began living in the Souma residence, and she has since created stronger relationships with its inhabitants Shigure, Kyou, and Yuki. She has also grown closer to the rest of the Souma family and has become familiar with their ancestral secret, having helped them with many of their personal issues. The closer Tooru gets, however, the more she begins to realize that their secret holds a darker truth than she first presumed. Summer is approaching and Tooru is invited to spend her days with the Soumas, mainly Kyou and Yuki. Tooru wishes for an easy-going vacation, but her close relationships with the two boys and the rest of the Soumas may prove to cause trouble. As they grow more intimate, their carefree time together is hindered by older hardships and feelings from the past that begin to resurface. The Eternal Banquet also dawns on the members of the zodiac, and they must tend to their duties alongside the unnerving head of the family, Akito Souma. With the banquet approaching and a plethora of feelings to be solved, will Tooru's life with the Soumas remain peaceful, or will she find herself in a situation from which she cannot escape?

Fourteen-year-old Iruma Suzuki has been unfortunate all his life, having to work to earn money for his irresponsible parents despite being underage. One day, he finds out that his parents sold him to the demon Sullivan. However, Iruma's worries about what will become of him are soon relieved, for Sullivan merely wants a grandchild, pampering him and making him attend the demon school Babyls. At first, Iruma tries to keep a low profile in fear of his peers discovering that he is human. Unfortunately, this ends up being more difficult than he expected. It turns out that Sullivan himself is the chairman of the school, and everyone expects him to become the next Demon King! Iruma immediately finds himself in an outrageous situation when he has to chant a forbidden spell in front of the entire school. With this, Iruma instantly earns a reputation he does not want. Even so, he is bound to be roped into more bizarre circumstances.

The Holy Grail War: a violent battle between mages in which seven masters and their summoned servants fight for the Holy Grail, a magical artifact that can grant the victor any wish. Nearly 10 years ago, the final battle of the Fourth Holy Grail War wreaked havoc on Fuyuki City and took over 500 lives, leaving the city devastated. Shirou Emiya, a survivor of this tragedy, aspires to become a hero of justice like his rescuer and adoptive father, Kiritsugu Emiya. Despite only being a student, Shirou is thrown into the Fifth Holy Grail War when he accidentally sees a battle between servants at school and summons his own servant, Saber. When a mysterious shadow begins a murderous spree in Fuyuki City, Shirou aligns himself with Rin Toosaka, a fellow participant in the Holy Grail War, in order to stop the deaths of countless people. However, Shirou's feelings for his close friend Sakura Matou lead him deeper into the dark secrets surrounding the war and the feuding families involved.

With a new school year comes a new crowd of classmates, and for their final year of junior high, aspiring writer Kotarou Azumi and track team member Akane Mizuno end up in the same class. Though initially complete strangers, a few chance encounters stir an innocent desire within their hearts. A yearning gaze, a fluttering heart—the hallmarks of young love slip into their lives as fate brings their paths to a cross. However, though love is patient and love is kind, Kotarou and Akane discover it is not always straightforward. Despite the comfort they find in each other's company, heartache and anxiety come hand in hand with pursuing the feelings in their hearts. With the uncertainty of how the other truly feels as well as the competing affections of those around them, the road ahead is unclear. Even so, under the shining light of a beautiful full moon, Kotarou gathers his courage to ask Akane a single question, one that forever changes their quiet relationship.