There are many anime heroes with background that makes the story more captivating, and here are some of them that fill in the list perfectly.
Guts – “Berserk”

Guts is a skilled warrior who has lived a life of constant pain and tragedy. Born from a hanged corpse, he was raised by mercenaries and later betrayed by his own leader.
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His traumatic past has turned him into a ruthless, solitary fighter with a deep-seated anger towards humanity. He is often portrayed as a cold and brooding character, but he also has a strong sense of loyalty to those who earn his respect and trust.
Saitama – “One Punch Man”

Saitama was once an average salaryman until he trained so hard that he became too powerful, making all his fights end in just one punch. He is known for his nonchalant attitude and his desire to find a worthy opponent to fight. Despite his immense strength, he remains humble and down-to-earth, with a deep sense of compassion for others.
Jotaro Kujo – “JoJo’s Bizarre Adventure”

Jotaro is a high school student with a dark family history. His father was killed in a fight with a vampire, and his grandfather is imprisoned for a crime he didn’t commit. Jotaro is a fierce fighter with a stand that can stop time, and he is often portrayed as a stoic, silent hero.
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He is also fiercely loyal to his friends and family, willing to put his life on the line to protect them.
Gon Freecss – “Hunter x Hunter”

Gon is a young boy who sets out to become a Hunter like his father, who abandoned him when he was young. Gon’s innocence and cheerful personality mask his traumatic upbringing, and he struggles with feelings of abandonment throughout the series. He is also incredibly determined and has a strong moral compass, always fighting for what he believes is right.
Eren Yeager – “Attack on Titan”

Eren is a boy who witnessed his mother being eaten by a Titan, which drove him to join the military to fight them. His deep-seated anger and desire for revenge make him a powerful fighter, but his obsession with killing Titans also makes him reckless and unstable. He is also fiercely protective of his friends and willing to sacrifice everything to keep them safe.
Sasuke Uchiha – “Naruto”

Sasuke is a member of the Uchiha clan, which was massacred by his own brother. His desire for revenge and his isolation from others make him a complex and sometimes villainous character, but he also has a deep sense of loyalty to his friends. He is a skilled fighter and a brilliant strategist, but his tragic past has left him emotionally scarred and disconnected from others.
Gintoki Sakata – “Gintama”

Gintoki is a samurai who fought in a war that destroyed his country, and he now works as a freelancer to make a living. He is known for his sarcastic humor and his willingness to fight for what is right, even if it means putting himself in danger. He is also deeply compassionate and empathetic towards others, despite his tough exterior.
Ichigo Kurosaki – “Bleach”

Ichigo is a high school student with the ability to see ghosts, and he becomes a Soul Reaper after a tragic event in his family. He is a fierce fighter with a strong sense of justice, but he also struggles with feelings of loneliness and the weight of responsibility.
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He is also fiercely protective of his friends and family, often putting himself in danger to keep them safe.
Naruto Uzumaki – “Naruto”

Naruto is an orphan who was shunned by his village due to his connection to a powerful demon. He is characterized by his optimism and his unwavering determination to become Hokage, the leader of his village. He also struggles with feelings of loneliness and abandonment, which stem from his traumatic past.
Kaneki Ken – “Tokyo Ghoul”

Ken Kaneki is a college student who is turned into a half-ghoul after an encounter with a ghoul named Rize. He is characterized by his internal struggle between his human and ghoul sides, as well as his desire to protect those he cares about. He is also a complex and introspective character who grapples with the nature of his own existence.
Lelouch Lamperouge – “Code Geass”

Lelouch is a brilliant strategist and a prince who seeks to overthrow his father, the Emperor of Britannia. He is characterized by his intelligence and his cunning, but also by his deep sense of guilt and regret over the deaths he has caused. He is a tragic hero who is willing to sacrifice everything for his cause.
Edward Elric – “Fullmetal Alchemist”

Edward is a skilled alchemist who lost his arm and leg in an attempt to bring his mother back to life. He is characterized by his fierce loyalty to his younger brother Alphonse, as well as his determination to find a way to restore his own body. He is also a complex character who grapples with the consequences of his actions and the cost of his power.
Kirito – “Sword Art Online”

Kirito is a skilled gamer who becomes trapped in a virtual reality game. He is characterized by his determination to survive and his strong sense of justice. He also struggles with feelings of guilt and trauma over the deaths of his friends in the game.
Shinji Ikari – “Neon Genesis Evangelion”

Shinji is a teenager who is forced to pilot a giant robot in order to fight off alien beings known as Angels. He is characterized by his deep sense of loneliness and isolation, as well as his reluctance to accept his role as a pilot. He is a complex and introspective character who struggles with his own sense of self-worth and the traumas of his past.
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