The Straw Hat crew salvages a treasure chest from a sinking wreck, inside which they find an old lady. To get the pirates to take her home, she promises them the treasure of a golden crown on her island: Mecha Island. Upon arrival, the crew is attacked by the lord of the island but he has a change of heart and decides to seek their help to solve the mystery of the Golden Crown.
One Piece Movie 7: Karakuri-jou no Mecha Kyohei has finished airing and it has 1 Episodes. It is also Known as: ワンピース THE MOVIE カラクリ城のメカ巨兵, One Piece The Movie: Karakurijou no Mecha Kyohei, One Piece: Karakuri Shiro no Mecha Kyohei, One Piece: The Giant Mechanical Soldier of Karakuri Castle, Karakuri Castle's Mecha Giant Soldier
Genres: Mecha , Pirate , Fantasy World , Adventure , Action , Comedy , Past , Super Power , Fantasy , Friendship
Try our anime quiz: Anime Characters Guessing Quiz/Game
Top 5 Anime Like One Piece Movie 7: Karakuri-jou no Mecha Kyohei [2025 List]
5. Zero no Tsukaima: Futatsuki no Kishi

Revered as heroes for their role in defending Tristain, Louise and her familiar Saito face heavy pressure to continue protecting the Kingdom. With an uneasy peace now established within Albion, the newly crowned Queen Henrietta must deal with a political struggle brewing on the horizon. To make matters worse, a new villain has begun plotting in the shadows against the Crown.
With the continuing threats that face the Kingdom, Louise and Saito are compelled to work together once more. No longer "Louise the Zero," the young mage's newfound aptitude for Void magic gives her enough power to wipe out an entire village; however, wielding these abilities comes with its share of challenges. As more conflicts arise, the idea of placing honor above oneself is put into question—regardless of their answer, their only choice is to see it through until the end.
The Familiar of Zero: Knight of the Twin Moons has finished airing and it has 12 Episodes. It is also Known as: ゼロの使い魔 ~双月の騎士~, Zero's Familiar 2nd Series, Zero no Tsukaima S2, The Familiar of Zero: The Rider of the Twin Moons
4. Maoyu ~ Archenemy & Hero

Fifteen years have passed since the war between humans and demons began. Dissatisfied with their slow advance into the Demon Realm, the Hero abandons his companions to quickly forge ahead towards the Demon Queen's castle. Upon his arrival at the royal abode, the Hero makes a startling discovery: not only is the Demon Queen a woman of unparalleled beauty, but she also seeks the Hero's help. Confused by this unexpected turn of events, the Hero refuses to ally himself with his enemy, claiming that the war the demons have waged is tearing the Southern Nations apart.
However, the Demon Queen rebuts, arguing that the war has not only united humanity but has also brought them wealth and prosperity, providing evidence to support her claims. Furthermore, she explains that if the war were to end, the supplies sent by the Central Nations in aid to the Southern Nations would cease, leaving hundreds of thousands to starve. Fortunately, she offers the Hero a way to end the war while bringing hope not only to the Southern Nations, but also to the rest of the world, though she will need his assistance to make this a reality.
Finally convinced, the Hero agrees to join his now former enemy in her quest. Vowing to stay together through sickness and health, they set off for the human world.
Maoyu ~ Archenemy & Hero has finished airing and it has 12 Episodes. It is also Known as: Maoyuu Maou Yuusha, まおゆう魔王勇者, Maoyu Maou Yusha
3. Zero no Tsukaima

Louise Françoise Le Blanc de La Vallière is a self-absorbed mage in a world of wands, cloaks, and royalty. Although she studies at Tristain Academy, a prestigious school for magicians, she has a major problem: Louise is unable to cast magic properly, earning her the nickname of "Louise the Zero" from her classmates.
When the first year students are required to perform a summoning ritual, Louise's summoning results in a catastrophic explosion! Everyone deems this to be yet another failure, but when the smoke clears, a boy named Saito Hiraga appears. Now Louise's familiar, Saito is treated as a slave, forced to clean her clothes and eat off the ground. But when an unfamiliar brand is found etched on Saito's hand from the summoning ritual, it is believed to be the mark of a powerful familiar named Gandalfr.
Wild, adventurous, and explosive, Zero no Tsukaima follows Saito as he comes to terms with his new life and as Louise proves that there is more to her than her nickname suggests.
The Familiar of Zero has finished airing and it has 13 Episodes. It is also Known as: ゼロの使い魔, Zero's Familiar
2. Fullmetal Alchemist

Edward Elric, a young, brilliant alchemist, has lost much in his twelve-year life: when he and his brother Alphonse try to resurrect their dead mother through the forbidden act of human transmutation, Edward loses his brother as well as two of his limbs. With his supreme alchemy skills, Edward binds Alphonse's soul to a large suit of armor.
A year later, Edward, now promoted to the fullmetal alchemist of the state, embarks on a journey with his younger brother to obtain the Philosopher's Stone. The fabled mythical object is rumored to be capable of amplifying an alchemist's abilities by leaps and bounds, thus allowing them to override the fundamental law of alchemy: to gain something, an alchemist must sacrifice something of equal value. Edward hopes to draw into the military's resources to find the fabled stone and restore his and Alphonse's bodies to normal. However, the Elric brothers soon discover that there is more to the legendary stone than meets the eye, as they are led to the epicenter of a far darker battle than they could have ever imagined.
Fullmetal Alchemist has finished airing and it has 51 Episodes. It is also Known as: Hagane no Renkinjutsushi, 鋼の錬金術師, FMA, Full Metal Alchemist, Fullmetal Alchemist (2003), HagaRen
1. One Piece

Gol D. Roger was known as the "Pirate King," the strongest and most infamous being to have sailed the Grand Line. The capture and death of Roger by the World Government brought a change throughout the world. His last words before his death revealed the existence of the greatest treasure in the world, One Piece. It was this revelation that brought about the Grand Age of Pirates, men who dreamed of finding One Piece—which promises an unlimited amount of riches and fame—and quite possibly the pinnacle of glory and the title of the Pirate King.
Enter Monkey D. Luffy, a 17-year-old boy who defies your standard definition of a pirate. Rather than the popular persona of a wicked, hardened, toothless pirate ransacking villages for fun, Luffy’s reason for being a pirate is one of pure wonder: the thought of an exciting adventure that leads him to intriguing people and ultimately, the promised treasure. Following in the footsteps of his childhood hero, Luffy and his crew travel across the Grand Line, experiencing crazy adventures, unveiling dark mysteries and battling strong enemies, all in order to reach the most coveted of all fortunes—One Piece.
One Piece is currently airing and will have Episodes. It is also Known as: ONE PIECE, ワンピース