Following the revelations of the archangel Gabriel, Ente Isla hero Emilia Justina—who lives on Earth under the alias Emi Yusa—starts doubting the validity of her mission to slay the Demon Lord Satan, now reduced to a modest employee of MgRonald's as Sadao Maou. At the same time, Sadao's high school-aged coworker Chiho Sasaki pursues a new dream with hopes to protect not only herself but also her friends. Secretly training with Emi and Suzuno Kamazuki to develop telepathic powers, Chiho's training is cut short when a group of demons abducts her. As angel and demon attacks threaten the fragile peace between the two worlds, Sadao and Emi need to put their troubled past behind them if they want to have a chance to find their new purpose in life.

As a corporate slave, Ryouta Satou experiences the worst forms of stress, overwork, and loneliness. Even after he is hospitalized due to exhaustion, his days of toil only become worse. Soon enough, the sheer fatigue catches up to him and kills him in his sleep. However, Ryouta is given a second chance at life: he wakes up in another world as a slime drop—much to the surprise of Emily Brown, the petite blonde girl who defeated said slime. Acquainting himself with the rules of this RPG-like world, Ryouta finds out that he will never grow past level 1. However, he also discovers that one of his skills is at the maximum level: the skill which determines the rarity of monster drops. This allows him to acquire not only items of the best quality, but also some that are unheard of. Ryouta sets out to make the most of his ability—meeting new friends, grinding through dungeons, and acquiring unique items along the way. Reveling in his new life seems to be the long-awaited and much-deserved reward for all the tribulations he had suffered.

In a world where death is not permanent, Terakomari Komari Gandesblood has been a self-proclaimed professional shut-in for the past three years. As part of the noble Gandesblood lineage, she once tried to meet the expectations of her family. However, as a vampire who cannot use magic or consume blood, she soon gave up on becoming an imperial general like her ancestors. Unfortunately, a misunderstanding with her father earns her the formidable position of one of the Seven Crimson Lords, the strongest fighters and generals in the Mulnite Empire. Now, Komari must hide her lack of talent from the soldiers she commands, or they may attempt to overthrow her. Working alongside her newly-assigned maid, Villhaze, Komari manages to trick her unit of soldiers into believing she is a ruthless warlord and promises to conquer the world. But as more people come to admire Komari, her life is further threatened as a vampire from her past reappears with every intention to kill her for good.

The beginning of Light Magic and the Hero, an otome RPG, unfolds fairly normally: the heroine, Alicia Ehnleit, meets her three love interests one after another and then inevitably comes face-to-face with the villainess. Yumiella Dolkness may be of noble descent, but her dark hair and rare dark-type magic—both associated with the Demon Lord—spark fear in anyone who sees her. When she is five years old, Yumiella regains memories of her previous life in modern Japan, also realizing that her fate is to become the hidden boss that appears after Alicia and her suitors defeat the Demon Lord. Yumiella refuses to live as the game dictates and, as she prefers the game's fantasy elements over its romance, she decides to cultivate her magical skills and level up in secret. However, everything falls apart on the day of the Royal Academy's entrance ceremony. Yumiella's powers are measured at level 99—something thought impossible even for the royal knights, let alone a 15-year-old girl. With the royal family requesting her help, and everyone else insisting that she prove her strength, Yumiella realizes that her dream of a quiet life is no longer an option.