Best Adventure Anime to Watch Free & Legally

In a world where the Demon King has been defeated, a legendary hero's party, comprising Himmel, Heiter, Eisen, and Frieren, shares unforgettable moments of camaraderie through their decade-long odyssey. But for Frieren, the elven mage, this fleeting chapter in her life is merely a blip on the radar of her centuries-long existence. As the party disperses, Frieren returns to her solitary routine, collecting spells across the land, seemingly unaffected by their shared experiences. Years pass, and Frieren's perspective on her time with the party begins to shift. The loss of two dear companions serves as a poignant reminder of the value of human connections. Tormented by regret, Frieren resolves to deepen her understanding of humanity and forge genuine bonds. As she navigates this new path, she discovers that the story of their legendary quest has only just begun to unfold.

In the aftermath of a devastating alchemy experiment gone wrong, brothers Edward and Alphonse are left to confront the harsh consequences of their actions. The tragic loss of their mother has left them with physical and emotional scars, as Alphonse's body is now nothing more than a mere shell, and Edward is left with a prosthetic leg and arm. Rescued by their neighbor Pinako Rockbell and her granddaughter Winry, a brilliant bio-mechanical engineer, the brothers begin their arduous journey to restore their bodies and souls. Their quest leads them to seek out the Philosopher's Stone, a powerful gem rumored to defy the fundamental laws of alchemy. As Edward becomes a renowned alchemist, earning the nickname "Fullmetal," the brothers find themselves entangled in a complex web of intrigue and deception that threatens the very fabric of their world. With each step forward, they uncover dark secrets and face formidable foes, pushing their resolve and determination to the limit. As the stakes grow higher, the Elric brothers must confront the true nature of their craft and the devastating consequences of their own desires. Will they be able to overcome the odds and restore their bodies, or will their pursuit of the Philosopher's Stone ultimately lead to their downfall?

In a world where danger lurks around every corner, a select group of individuals known as Hunters take on the most daunting tasks, from exploring uncharted territories to battling mythical creatures. But before they can join their ranks, aspiring Hunters must first survive the grueling Hunter Examination, a trial by fire that claims the lives of most who dare to attempt it. For 12-year-old Gon Freecss, the driving force behind his determination to become a Hunter is personal he:'s on a quest to find his missing father, a renowned Hunter who has abandoned him. With a burning desire to reunite with his father, Gon sets out to prove himself worthy of the Hunter mantle. As Gon navigates the treacherous Hunter Examination, he forges unlikely bonds with a diverse group of individuals, each with their own motivations and secrets. There's Leorio, a medic-in-training driven by a desire for wealth and status; Kurapika, a vengeful young man consumed by a burning hatred; and Killua, a former assassin with a troubled past. United by their shared goal of becoming Hunters, this mismatched group of adventurers embarks on a perilous journey that will test their limits and push them to the brink of disaster.

In a world where the veil between reality and the afterlife is thin, Ichigo Kurosaki, a Substitute Soul Reaper, has dedicated his life to protecting Karakura Town from the malevolent forces of Hollows. Alongside his trusted companions - Orihime Inoue, a gifted healer; Yasutora Sado, a high school classmate with extraordinary strength; and Uryuu Ishida, his Quincy rival - Ichigo has been a constant thorn in the side of the dark spirits that lurk in the shadows. However, the arrival of Asguiaro Ebern, a formidable Arrancar, signals the return of Yhwach, an ancient Quincy king with a thirst for revenge. Yhwach seeks to rekindle the ancient feud between Soul Reapers and Quincy, and his ultimate goal is to erase both the human world and the Soul Society from existence. The stage is set for a catastrophic conflict as Yhwach launches a devastating two-pronged assault on both the Soul Society and Hueco Mundo, the realm of Hollows and Arrancar. As the world teeters on the brink of destruction, Ichigo and his companions must form unlikely alliances with old friends and foes to take down Yhwach and his minions. With the fate of humanity hanging in the balance, Ichigo must confront his own demons and harness the power within him to save the world from the brink of annihilation.

In the aftermath of his village's devastating destruction, Einar's quest for a peaceful life with his family is brutally shattered. As the Danes return, Einar's world crumbles around him, leaving him to bear witness to the senseless slaughter of his loved ones. Forced into slavery, Einar is taken to Denmark, where he finds himself at the mercy of his ruthless captors. Despite the overwhelming despair, Einar holds onto his mother's words of wisdom, using them as a lifeline to survive. His path intersects with that of Thorfinn, a brooding and troubled slave, as they toil together in the fields under the watchful eye of their benevolent master, Ketil. As they work towards their freedom, Einar and Thorfinn are confronted with the dark legacy of their past and the treacherous machinations of their present. Yet, they persevere, clinging to the hope that one day they may find redemption and peace in a world rife with injustice.

In a world where war is a never-ending reality, a young warrior named Thorfinn is driven by a burning desire for revenge. Raised on tales of a mythical land called Vinland, where conflict is unknown, Thorfinn's childhood was marked by the brutal stories of old sailors who had braved the seas. However, his own life as a mercenary has hardened him, and he now finds solace in the chaos of battle. The war between England and the Danes rages on, and Thorfinn's ultimate goal is to eliminate Askeladd, the ruthless warrior who slaughtered his father. As the conflict escalates, Thorfinn must navigate the treacherous landscape of Viking mercenaries, who are more than happy to take advantage of the chaos and reap the rewards of war. With no clear allegiance to either side, Thorfinn's journey becomes a quest for vengeance, fueled by his desire to avenge his father's death. Amidst the bloodshed and destruction, Thorfinn's path is fraught with danger, but he remains resolute in his pursuit of justice. In a world where war has become the norm, Thorfinn's struggle for revenge becomes a powerful symbol of the human desire for peace and the devastating consequences of unchecked violence. As the battle-scarred landscape of medieval Europe serves as the backdrop, Thorfinn's journey is a gripping exploration of the human condition, where the pursuit of revenge is pitted against the very survival of humanity.

In a world where the legendary One Piece treasure holds the key to becoming the supreme ruler of the seas, a young and fearless pirate named Monkey D. Luffy sets out on a perilous journey to claim it. With his extraordinary abilities and unwavering determination, Luffy is a force to be reckoned with, taking on formidable foes and overcoming treacherous obstacles along the way. The enigmatic King of the Pirates, Gol D. Roger, sparked a global phenomenon by revealing the location of his vast treasure before his demise, sparking a frenzy among pirates to find the elusive One Piece. Despite the countless failures and tragic losses, Luffy remains undeterred, driven by his unshakeable spirit and an unquenchable thirst for adventure. As Luffy navigates the unpredictable waters, he attracts a motley crew of misfits and outcasts, each with their own unique talents and quirks. Together, they face a series of heart-pumping challenges, battling fearsome enemies and discovering hidden wonders that will test their mettle and push their bonds to the limit.

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 depths of an underground village, two young men, Kamina and Simon, live in a world shrouded in mystery. Kamina, a charismatic rebel, dreams of making a name for himself, while Simon, a timid soul, lacks direction. Their lives take a dramatic turn when Simon uncovers an ancient relic, which they dub Lagann, igniting a chain reaction that propels them onto the surface. There, they meet Yoko Littner, a fiery redhead wielding a massive gun, who joins their quest. As they venture into the unknown, the trio faces formidable foes: the Beastmen, humanoid creatures terrorizing the remnants of humanity in behemoth robots called Gunmen. With their newfound allies, they embark on a perilous journey to reclaim the surface, unraveling a cosmic enigma along the way. As they battle against insurmountable odds, Simon and Kamina discover their own strengths, and the true meaning of courage and camaraderie.