A decade ago, princess Krystal Novaty “Hime” Nokanatika traveled from another world to escape assassination attempts by an evil force. When she arrives in modern-day Japan, she encounters Haruto Satou. With him she shares a promise: he must forget what he has just witnessed, and the two will become friends. Now heading back to the Nokanatika Kingdom to fulfill her royal duties, Hime bids farewell to Haruto. However, when the young man suddenly remembers his first meeting with Hime, he rushes to the location where she first appeared and crosses the dimensional portal to be reunited with her. His arrival disrupts the marriage ceremony between Krystal and prince Marmarugias Gisaras. The wedding is brutally interrupted by the attack of an abyss monster who threatens the princess' life. Acting impulsively, Hime decides to exchange rings with Haruto, which grants her new husband light powers that permit him to slay the monster. Now dubbed as the Ring King, Haruto must marry four other princesses to acquire new magical powers and have a chance to prevail in his fight against the enemy of the world: the Abyss King.

Despite occasional setbacks, Operation Strix has remained on track to extract sensitive information from the enigmatic politician Donovan Desmond. To this end, spy Loid Forger has managed to maintain his pretend family consisting of his telepathic daughter, Anya; assassin wife, Yor; and their clairvoyant dog, Bond. Still the only one aware of everyone's true identities, Anya tries to sustain the family's cohesion while working to befriend Donovan's son Damian, her Eden Academy classmate. However, Anya's efforts instead earn her another Tonitrus Bolt, bringing her closer to getting expelled and jeopardizing the operation's success. Hearing the news, Loid faints from shock. In his unconsciousness, he reminisces about his tragic past and his journey to becoming a spy. Realizing what Operation Strix means to him and the world, Loid finds renewed motivation. Although they each work toward their own covert goals, the Forgers continue to cherish their chaotic yet blissful family life.

Tsukuyomi is a virtual realm where hopes and dreams come together. Iroha Sakayori, a 17-year-old high school student in Tokyo, leads an extremely busy life trying to balance part-time work and academics. She finds peace by watching a popular streamer named Yachiyo Runami, who is the administrator of an online virtual space called Tsukuyomi. Iroha frequents Tsukuyomi, where people can live different lives and freely pursue their creativity, and she passes the time by supporting Yachiyo and playing battle games to earn a little extra money. On her way home one day, Iroha finds a telephone pole shining with iridescent hues. To her surprise, an adorable baby emerges from the pole. Unable to abandon it, Iroha takes the infant home and watches her rapidly grow into a girl her own age. "Are you Princess Kaguya?" The grown-up Kaguya develops a self-indulgent personality. At Kaguya's fervent request, Iroha helps her start streaming in Tsukuyomi. With Iroha as producer and songwriter and Kaguya as streamer and singer, the two grow steadily closer. Little do they know that ominous forces lie in wait, eager to take Kaguya back to the moon. This is the tale of Princess Kaguya as never seen before.

"This party doesn't need an incompetent magician who can only use supportive magic. You're fired, Alec Ygret." Suddenly, Alec, a court magician who had joined the crown prince's party to help him conquer dungeons—was banished from the party. And not just the party, but the crown prince's harassment has banished him from the royal palace as well, and a friend from the "magic academy" approached Alec, who was at his wit's end. "Hey, Alec. Do you want to try to conquer the dungeon with us again?" And so, together with the friends he used to party with, Alec begins his second journey in life. This is the adventure story of a former court magician who had been abandoned. Four years ago, the "Lasting Period," a party of four that had been called "legendary," has gradually spread its name around the world.