The following are the top 10 best Science Fiction based manga:-
Description: Yuri lived the peaceful, average teenage life until Queen Nakia drew Yuri across time and space into the ancient Hittite Empire to use her as a sacrifice! Yuri meets many different friends throughout her journey to find a way home, but when the season of the North Star comes, enabling Prince Kail to send Yuri home, can she make it back, or have her growing feelings for Kail become too much?
Description: PSYREN follows the adventures of Ageha Yoshina, a high school student who is chosen by Nemesis Q as a participant in the Psyren games. The games take place in a world known initially as Psyren, which is revealed to be the real world in the future. Ageha and his friends attempt to alter the future and save the world from becoming Psyren.
Description :Tower of God centers around a boy called Twenty-Fifth Bam, who has spent most of his life trapped beneath a vast and mysterious Tower, with only his close friend, Rachel, to keep him company. When Rachel enters the Tower, Bam manages to open the door into it as well, and faces challenges at each floor of this tower as he tries to find his closest companion.
Description :The seemingly ordinary and unimpressive Saitama has a rather unique hobby: being a hero. In order to pursue his childhood dream, he trained relentlessly for three years—and lost all of his hair in the process. Now, Saitama is incredibly powerful, so much so that no enemy is able to defeat him in battle. In fact, all it takes to defeat evildoers with just one punch has led to an unexpected problem—he is no longer able to enjoy the thrill of battling and has become quite bored. This all changes with the arrival of Genos, a 19-year-old cyborg, who wishes to be Saitama’s disciple after seeing what he is capable of. Genos proposes that the two join the Hero Association in order to become certified heroes that will be recognized for their positive contributions to society, and Saitama, shocked that no one knows who he is, quickly agrees. And thus begins the story of One Punch Man, an action-comedy that follows an eccentric individual who longs to fight strong enemies that can hopefully give him the excitement he once felt and just maybe, he’ll become popular in the process.
Description : Midoriya Izuku was just a regular middle school student in a world where people with superpowers known as Quirks are the norm. However, he dreams of one day becoming a Hero, despite being bullied by his classmates for not having a Quirk. After being the only one to try and save his childhood friend, Katsuki, from a Villain, All Might, the world’s greatest Hero, bestows upon him his own quirk, One For All. The story follows Izuku’s entrance into Yuuei High School, a school that cultivates the next generation of Heroes.
Description :Asta and Yuno were abandoned together at the same church and have been inseparable since. As children, they promised that they would compete against each other to see who would become the next Emperor Magus. However, as they grew up, some differences between them became plain. Yuno was a genius with magic, with amazing power and control, while Asta could not use magic at all, and tried to make up for his lack by training physically. When they received their Grimoires at age 15, Yuno got a spectacular book with a four-leaf clover (most people receive a three-leaf-clover), while Asta received nothing at all. However, when Yuno was threatened, the truth about Asta’s power was revealed, he received a five-leaf clover Grimoire, a “black clover”! Now the two friends are heading out in the world, both seeking the same goal!
Description : The Amanto, vicious aliens from outer space, has taken over the country of Japan. It has suppressed all the samurais by prohibiting the usage of samurai swords. Sakata Gintoki is one of the few remaining samurai. Along with Shimura… Gintama is a rare case that is rated G for everyone. Every single episode in the series has unique storyline and actions. The story follows Gintoki as he assists victims of the the Amanto’s invasion by fighting with the shinsengumi and the aliens.
Description : Revenge~Sure is a sweet thing!
Description : The story begins with Yggdrasil, a popular online game which is quietly shut down one day; however, the protagonist Momonga decides to not log out. Momonga is then transformed into the image of a skeleton as “the most powerful wizard.” The world continues to change, with non-player characters (NPCs) begining to feel emotion. Having no parents, friends, or place in society, this ordinary young man Momonga then strives to take over the new world the game has become.
Description : In Mikado City (280 000 inhabitants), a “gate” to another world is opened unexpectedly one day. Creatures called “Neighbors” begin appearing from it, many people are scared of them because Earth’s arms do not work against them, but a cryptic group begins fighting off the Neighbors. They, the “Border” protection bureau, develop a defense system from the Neighbors. Now, since that time, whatever the Neighbors still appearing in the gates, individuals of Mikado City were dwelling generally. Yumother Kuga, a humanoid Neighbor, comes to Mikado City, where he fulfills a Border representative, Osamu Mikumo four plus a half years following the gate is opened for the very first time.