Best Mystery Anime of 2024

On the 20th floor of the Tower, the "Regulars" allowed entry must undergo grueling and highly costly tests to move up. Most give up hope and settle where they are—but Ja Wangnan is different. Wangnan is determined to reach the summit and become the king of the Tower. Yet he is weak, has repeatedly failed the exam, and is pursued by debt collectors. In desperation, he tries the exam once more, only to come across a mysterious and formidable figure: Jyu Viole Grace, a member of the criminal organization FUG. Cursing his bad luck, Wangnan has no choice but to build alliances with strong individuals, including Viole—who still refuses to join any team. In a critical situation, Wangnan must find a way to change Viole's mind to finally move beyond the 20th floor, or he will never have a chance to forge his legacy.

Jougorou Kobato has a tendency to meddle in the affairs of others. After recognizing that his sleuthing abilities are neither desired nor valued, he makes a pact with his quiet friend Yuki Osanai to pursue ordinariness together. As they enter high school, they hope to come across as unremarkable individuals, but Kobato inevitably slips back into his habit of solving puzzles when minor enigmas surface. However, not every occurrence remains small-scale. While going about their school days and attempting to stay unnoticed, Kobato and Osanai sometimes find themselves involved in situations that jeopardize their dream of a calm, uneventful life.

Second part of Tower of God Season 2.

At the bidding of Queen Victoria, Earl Ciel Phantomhive travels to Weston College—a distinguished all-boys public school famed for its customs and excellent academics—to find a missing member of her family who has not been seen in several months. Owing to his noble rank, the thirteen-year-old Ciel quickly manages to enroll as a pupil, while his demonic butler Sebastian Michaelis takes up a teacher role at the institution. Ciel is caught off guard when he fails to discover the Queen’s relative anywhere on the grounds. Compounding the problem, he is unable to secure a meeting with the college’s headmaster, who might be the sole individual with knowledge of the disappearance. Those who regularly interact with the headmaster are the dormitory leaders, called the Prefect 4 (P4): Edgar Redmond, Lawrence Bluewer, Herman Greenhill, and Gregory Violet. To succeed in his mission, Ciel must devise a strategy to earn the favor of the P4 and leverage their connections. However, the prestigious school and its students conceal many hidden truths, rendering this endeavor far more difficult than he ever anticipated.

Adult life has brought its fair share of disappointments to 28-year-old writer Sumireko Ogawa, once hailed as a child prodigy in literature. Facing pushback from editors, she struggles to get her work published and make progress on her new novel. Just as Sumireko begins to accept the mundane existence of a bookstore clerk, she is violently thrust into the world of mysteries after reading a poem from a strange book, unexpectedly reverting to a child. Sumireko is overjoyed to have regained her inspiration and youthful energy. However, her coworker Ren Adashino, an expert in the occult, warns that this transformation will eventually kill her unless she recites other verses from the book. Reluctantly agreeing to return to her adult form, Sumireko decides to assist Ren and his sister, Oto, in their paranormal investigations. Though Ren's motives remain unclear to Sumireko, she is determined to turn these new, exciting life experiences into lasting literary success.

Koyomi Araragi once used his final year in high school to assist various young women in his town with supernatural problems. Now that Araragi has moved on to college, his friends must handle new curses and difficulties on their own. Yotsugi Ononoki, formerly a human corpse and now a living doll, moves into Araragi's household to watch over his sister Tsukihi, a girl who conceals a mystical secret. In this new role, Yotsugi takes over Araragi's position as an occult specialist, aiding other townspeople with their troubles. One such person is middle-schooler Nadeko Sengoku, who is gradually healing from her own recent encounters with the paranormal. She avoids going back to school and instead stays shut in her room, chasing her ambition to become a professional manga artist. To help Nadeko advance more quickly in her art, Yotsugi talks her into making four duplicates of herself, each embodying a different facet of Nadeko's personality. But the clones refuse to assist her, fleeing into the town and causing chaos. Forced to confront her own fragmented identity, Nadeko sets out to recapture them and settle her inner turmoil.

Shortly after Ron Kamonohashi and Totomaru Isshiki established their partnership, the duo demonstrated remarkable skill in resolving numerous cases. Their resolve to keep working intensifies when they uncover evidence that the House of M, a notorious criminal organization, was responsible for Ron’s expulsion from the elite Detective Training Academy BLUE five years ago. This group also seems connected to Ron’s cursed ability, which triggers fatal accidents for those nearby, a phenomenon he is eager to control. A member of the House of M begins committing arrogant serial murders throughout Shibuya to provoke Ron. Driven by a desire for justice and a need to understand Ron’s troubling history and current state, the investigative team strives to capture the murderer.

A wave of serial killings has struck the vampire community, initially appearing as isolated incidents. However, each crime scene features a card inscribed with "True of Vamp," a reference to the legendary progenitor of all vampires. The secret intelligence group known as the Vlad Agency recruits the distinguished aristocrat Dali Delico to head the investigation. Dali initially declines, preferring to prioritize his role as a father. His former colleagues, Gerhard Fra, Henrique Lorca, and Dino Classico, persuade him to combine his agency duties with his parental responsibilities. Dali agrees on the condition that the trio must also participate in childcare throughout the case. Consequently, Dali’s residence transforms into both a nursery and the operational hub for these four noble vampires. At the same time, a familiar criminal syndicate plots from the shadows, harboring malicious goals that could potentially destroy vampire society entirely.

To locate his beloved partner, Wu Liuqi travels back to Xuanwu Country and confronts the pieces of his past he had long forgotten. While the uncovered truth stirs up pain and rage, he no longer has to face it by himself. He must now consider what the true meaning of power is, forcing Wu Liuqi to make a fresh decision regarding his future.

The story of Gekkan Mousou Kagaku takes place in Most City, located in an unnamed country, within a small publishing company that produces a monthly magazine dedicated to the most bizarre and improbable subjects. The routine is disrupted when the magazine's staff—editor-in-chief Tarou, his assistant Jirou, and their dog Saburou—encounter the scientist Gorou Satou.

High school student Ryouka Tsurumi awakens in her room on Christmas Eve and quickly uncovers several horrifying truths. Her mother tells her that the mansion has been evacuated and the area locked down because of a mysterious, dangerous entity named X. The only other person still inside is Shuuhei Murosaka, Ryouka's childhood friend. Even worse, Ryouka learns that X can brainwash people, all to achieve its gruesome aim: feeding on human blood to reproduce. Shuuhei rescues Ryouka from one of X's savage attacks. As the two friends attempt to flee the lockdown zone, they are captured by hypnotized humans and then devoured by the giant beast. For Ryouka, the nightmare has only begun: she wakes up in her room a second time, only to discover a different X now threatening her life. Realizing she is trapped in a time loop, Ryouka decides to join forces with Shuuhei to seek a safe future beyond X's reach.

Following a zombie apocalypse that ravaged the world, Mikoto Amano regains consciousness in an unknown location, suffering from total amnesia. She is welcomed by six young women named Ranna, Lili, Yuu, Fumika, Murumuru, and Rumina. Their tranquil existence is abruptly disrupted by a horrific incident: the male companion who was saved alongside Mikoto is found brutally murdered. With the killer hidden among the group, everyone is potentially the next victim. The narrative takes place within the Tokyu Kabukicho Tower, a high-rise building that has been sealed off, becoming a stage where secrets and mysteries emerge in succession. As friendships begin to develop among the girls, they must determine if they can solve the mystery of the crime.

Following a devastating loss to a renowned detective, James Moriarty is reborn as a spirit in a different realm. He awakens inside Sherry Moriarty, a student from the prestigious All Blue Academy who endures severe bullying, and prevents her from ending her own life. Though James has lost his memories of his name and history, his criminal mind remains intact, and he resolves to aid Sherry in exacting vengeance on Porgrette Whey Cochon and the other noble girls who have tormented her. The bullies at All Blue Academy will soon discover that with two Moriartys collaborating on an impeccable scheme, no one can oppose them.

Eighth season of Oshiri Tantei.