Osamu and Youko Sonoyama want more than anything to adopt every child from Soramame House, but the wealthy couple can only pick one due to their increasingly old age. While they contemplate this delicate decision, one child's alluring beauty and gentle soul instantly draw them in. Two months later, the Sonoyamas welcome 13-year-old Hitori into their warm and loving home. However, Hitori's humble and overly polite exterior is merely a masquerade. In reality, Hitori is a carefully crafted character played by identical twins Migi and Dali. For them, being the ideal child of this kind couple is merely a stepping stone to infiltrating a certain quiet town. While dutifully protecting their cover, the twins work toward their true objective: to discover the truth behind a past incident that left them with a burning desire for vengeance.

Although Kenzaburou Tondabayashi is a 52-year-old bureaucrat, he is well versed in reincarnation stories where a protagonist suddenly awakens in a fantasy world. After being hit by a truck, Kenzaburou lands in that exact situation. However, what baffles him is the fact he wound up in the world of an otome game—as the young villainess and the daughter of a duke, Grace Auvergne. Fortunately for Kenzaburou, he is somewhat familiar with his new world, as it is based on the game called Magical Academy: Love & Beast. He was a proud father in his previous life, and he often listened to his daughter rave about the game's setting and characters. Armed with background knowledge and a lifetime's worth of dad skills, Kenzaburou strives to make the most of his new life, though his kind-hearted nature makes it difficult to fully embrace the role of a villainess.

Jill Savelle—fiancée of the crown prince Gerald der Kratos and known as the Lady Goddess of War—is being hunted down by the same country she swore to protect. Betrayed by her betrothed, she is framed as a traitor and imprisoned. In her last moments, Jill is filled with regret, but just as death approaches, she awakens six years in the past. This time, she will not be a mere pawn. Now as a 10-year-old girl, Jill resolves to escape her imminent engagement to the prince. To this end, she jokingly professes her love to the 19-year-old dragon emperor Hadis Teos Rave, who will one day stain the land in blood due to madness. But against all expectations, he accepts! In contrast to the tyrant from Jill's memories, the Hadis of this time is a kind albeit unfortunate emperor. Can Jill prevent Hadis from descending down the same dark, villainous road, or is he bound to an inevitable future?

Kudou Shinichi is living his life as Edogawa Conan, but those days seem like they might end pretty soon. The Black Syndicate is coming dangerously close to learning the truth about Shinichi having survived. Conan and everybody around him may end up dead if he doesn't manage to find Irish—a member of the Black Organization who has infiltrated the police forces, currently investigating a big serial murder case.