Best Mystery Anime to Watch Free & Legally

In the imperial court, Maomao's exceptional knowledge of medicines and poisons proves invaluable as she navigates a web of mysteries and conspiracies. Having reconciled with the secrets of her parents, she returns to her duties, serving the emperor's highest-ranking consorts. Alongside eunuch Jinshi, Maomao works to improve the lives of the ladies-in-waiting, including teaching them to read. However, the arrival of a merchant caravan sparks a new wave of intrigue, as a series of unsettling coincidences involving the visitors and their wares piques Maomao's interest. As tensions rise and threats emerge from both within and outside the palace, Maomao must employ her wit and medical expertise to protect the women and maintain the delicate balance of the imperial concubines.

In the prestigious Johanestahl Hospital, Dr. Kenzou Tenma is poised to become a leading neurosurgeon, with a bright future ahead and a fiancée from a prominent family. However, a pivotal moment of decision-making sets him on a drastically different path. When a wealthy patient's life hangs in the balance, Dr. Tenma is forced to choose between saving a famous performer and a young immigrant worker. The consequences of his choice are far-reaching, leading to a crisis of conscience and a loss of social standing. Years pass, and Dr. Tenma's fortunes change once more. Following the mysterious deaths of several colleagues, he is cleared of any wrongdoing and rises to the position of hospital director. Yet, the specter of his past continues to haunt him. When he saves the life of a notorious criminal, his encounter with the enigmatic Johan Liebert sets him on a quest for redemption. Dr. Tenma must confront the chaos unleashed by the boy he once saved, and navigate a complex web of morality and justice to make amends for the harm caused by his past decisions.

In the opulent imperial court, a young apothecary's daughter named Maomao finds herself torn from her peaceful life and thrust into the shadows as a lowly maid. She conceals her extensive knowledge of medicine to avoid drawing unwanted attention, but her curiosity gets the better of her when the emperor's infant children fall gravely ill. Maomao quickly unravels the mystery behind their affliction, but her attempt to remain anonymous is foiled by the perceptive eunuch Jinshi, who recognizes her remarkable talent. As a result, Maomao is promoted to lady-in-waiting for the emperor's favorite concubine, Gyokuyou, and her expertise in pharmaceuticals proves invaluable in treating the numerous ailments plaguing the imperial court. With her skills in high demand, Maomao must navigate the treacherous world of court politics while keeping her true identity and abilities hidden.

As the new semester dawns, Koyomi Araragi and his eclectic group of friends are faced with the daunting prospect of graduation looming on the horizon. With his future uncertain, Koyomi must navigate the complexities of relationships and friendships, all while dealing with the supernatural entities that seem to orbit his life. Meanwhile, a mysterious tiger apparition appears, targeting Tsubasa Hanekawa, the group's genius and Koyomi's confidante. As Hanekawa finds herself in a precarious situation, she must rely on her wits and resourcefulness to survive.

In a small, enigmatic photo studio, two friends, Cheng Xiaoshi and Lu Guang, possess a unique gift - the ability to physically enter photographs. As their clients bring in treasured snapshots, the duo uses their extraordinary powers to delve into the captured moments, unraveling the secrets hidden within. By assuming the perspective of the photographer, they relive the events surrounding the image, striving to decipher the mysteries and fulfill the client's desires. However, this extraordinary ability comes with a profound risk. Every misstep can have far-reaching consequences, altering the future of the photographer and potentially reshaping the course of countless lives. As they become increasingly entangled in the stories they're asked to unravel, the lines between their own emotions and the events they're trying to alter begin to blur. It's a delicate balancing act, requiring unwavering focus and self-control to accomplish their mission without succumbing to the weight of their own feelings.

In a world where the unknown is often feared and misunderstood, a peculiar phenomenon known as the Mushi has come to be. These enigmatic beings, despite their strange nature, harbor no ill will towards humanity. However, their existence can have unintended and far-reaching consequences when exploited by humans. As a skilled Mushishi, Ginko embarks on a journey to facilitate harmony between the visible world and the mysterious Mushi. Along the way, Ginko encounters individuals with extraordinary abilities, some cursed by circumstance and others in delicate balance with the Mushi. As he delves deeper into the world of these strange beings, he is forced to confront the question of whether humanity, regardless of its talents or tribulations, is equipped to handle the responsibility that comes with the unseen. Moreover, Ginko must grapple with the ethics of intervening in the intricate relationships between the Mushi and mankind, weighing the consequences of his actions.

In a world teeming with life, there exist entities that defy categorization. Known as Mushi, these enigmatic beings lack purpose or motivation, existing solely to be. They can manifest in countless forms, from the natural world to the most abstract phenomena. Yet, despite their ubiquity, humans remain largely oblivious to their presence. Enter Ginko, a renowned Mushishi, who has dedicated his life to uncovering the mysteries of these elusive entities. With an insatiable curiosity, Ginko embarks on a journey to investigate rumors and occurrences that may be connected to the Mushi. His quest is driven by a deeper longing to understand the place of these Mushi in the grand tapestry of life. As Ginko delves deeper into the unknown, he may stumble upon answers that could redefine humanity's understanding of existence itself. Will his tireless pursuit of truth ultimately reveal the secrets of the Mushi, or will the mysteries of these ancient beings remain forever shrouded in mystery?

In the rural countryside, two cultivators, Wei Wuxian and Lan Wangji, stumble upon a mysterious stone plaque bearing the name "Yi City". As they delve deeper into the deserted city, they uncover a web of secrets surrounding the cursed severed arm they've been investigating. However, their quest takes a dark turn with the emergence of a new, enigmatic cultivator, leading them to a sinister plot that threatens the very fabric of the cultivation world. As they dig deeper, they discover a connection to Jin Guangyao, the esteemed chief cultivator of the revered Lanling Jin Sect. The stakes escalate, and their friends and allies begin to question their motives, fueled by rumors of Wei Wuxian's supposed demonic affiliations. With the weight of suspicion bearing down on him, Wei Wuxian must prove his innocence and reclaim the trust of those around him to prevent the impending doom that looms over the cultivation world.

In a small town, a peculiar individual named Hiroshi Odokawa navigates his daily routine as a taxi driver. His straightforward nature and eccentricities make him a magnet for an eclectic group of passengers, including the aimless Taichi Kabasawa, the enigmatic nurse Miho Shirakawa, the struggling comedy duo Homo Sapiens, and Dobu, a notorious delinquent. However, Odokawa's ordinary life takes an unexpected turn when the police investigation into a missing girl's disappearance suddenly centers around him. As the yakuza and a pair of corrupt cops close in, Odokawa finds himself entangled in a complex web of secrets and lies.

In the depths of the earth lies the enigmatic Abyss, a vast chasm teeming with ancient secrets and mysterious creatures. For centuries, brave Divers have ventured into its unknown regions, driven by an insatiable curiosity about the Abyss's origins and the secrets it holds. Among them are the legendary White Whistles, celebrated heroes who have pushed the boundaries of human exploration. Riko, the daughter of the legendary Lyza the Annihilator, is determined to follow in her mother's footsteps and uncover the secrets of the Abyss. As a novice Red Whistle, she's only allowed to explore the upper layers, but her chance encounter with a mysterious robot boy, Reg, sets her on a journey to uncover the truth about his creation and the Abyss's darkest depths. Reg, however, has no memory of his past, and together they embark on a perilous quest to recover his memories and reach the bottom of the Abyss. As they delve deeper into the unknown, they'll encounter treacherous landscapes, ancient ruins, and hidden dangers. But the harsh reality of the Abyss is only beginning to reveal itself, and Riko and Reg must confront the unforgiving environment and the secrets it holds if they hope to uncover the truth about Reg's past and the mysteries of the Abyss.