10 Most Insufferable Protagonists in Anime History

10. Zenitsu Agatsuma

Zenitsu is one of the most polarizing characters in Demon Slayer. While he is a fan-favorite in Japan, international audiences often find him "unbearably annoying" due to his constant, screeching cowardice and his over-the-top obsession with every girl he meets. Fans love his "Godspeed" combat moments, but they hate the 20 minutes of screaming that precede them. He represents the extreme end of the "Cowardly Sidekick" trope, and for many, his ear-piercing antics overshadow his genuine moments of heroism and tragic backstory.

9. Meliodas

Meliodas from The Seven Deadly Sins has become a point of controversy, largely due to his repeated inappropriate behavior toward the female lead, Elizabeth. Unlike many anime characters whose actions are immediately framed as wrong or played for obvious consequences, Meliodas’s behavior is often brushed off as playful or endearing by the story and other characters. Although later seasons attempt to contextualize this dynamic through a tragic, “star-crossed lovers” curse, the explanation arrives too late for many viewers. For a significant portion of the Western audience, the repeated moments had already undermined his likability, leaving his actions difficult to overlook or excuse.

8. Kazuya Kinoshita

Kazuya from Rent-a-Girlfriend is frequently described by critics as "pathetic" and "physically painful to watch." He is hated for his pathological lying, his extreme lack of self-respect, and his "simp" behavior—spending vast amounts of money on rental dates while having "fantasies." While defenders say he represents a "realistic loser," most viewers find his refusal to grow or learn from his mistakes after hundreds of chapters to be exhausting. He is the ultimate "anti-hero" in the sense that many viewers actively root against his happiness.

7. Asta

Asta from Black Clover is a rare case where the "hatred" was initially purely auditory. Upon the anime's debut, his relentless, high-pitched screaming was so pervasive that many viewers dropped the series within the first three episodes. Beyond the voice, his "one-dimensional" shouting about his dreams felt like a loud caricature of better-executed shonen leads. As the voice acting stabilized and Asta showed genuine heart and tactical growth, much of the hate dissipated, but "Early Asta" still holds a spot in the Hall of Fame for annoying leads.

6. Sakura Haruno

Though part of a trio, Sakura is often treated as the "hated lead" of the Naruto franchise. The vitriol stems from her early-series superficiality—obsessing over Sasuke while being "useless" in combat—and her frequently violent outbursts toward Naruto, who was often the only one helping her. Even after becoming a top-tier medical ninja in Shippuden, she is criticized for her "obsession" with Sasuke, which many fans see as a regression of her character. She remains the primary example of how poor writing can alienate an audience from a character meant to be a core hero.

5. Boruto Uzumaki

Boruto faces a unique kind of hatred: he is a protagonist living in the shadow of a beloved predecessor. Early in the series, he was widely disliked for being a "bratty" and "entitled" version of Naruto, frequently disrespecting his father’s hard-earned legacy as Hokage. Fans who grew up watching Naruto struggle from nothing found Boruto’s complaints about "busy parents" to be shallow. While the Blue Vortex era (2024–2026) has drastically redeemed his image through a "darker" and more mature tone, his early characterization remains a major barrier for many legacy fans.

4. Yukiteru Amano

Yukiteru (Yuki) from Future Diary is often cited as the "dead weight" protagonist. In a high-stakes survival game, Yuki spends the majority of the series crying, hiding, and allowing the psychopathic Yuno Gasai to do all the heavy lifting. His inability to act, combined with his frequent betrayals of Yuno despite relying on her for his life, makes him incredibly frustrating to watch. While his growth toward the end is noted, most fans find his early-to-mid-series "uselessness" so grating that they struggle to find any empathy for his plight.

3. Kirito

Kirito from Sword Art Online is the poster boy for the "Overpowered/Boring" critique. He is frequently slammed for being a "Gary Stu"—a character who is impossibly strong, lacks meaningful flaws, and instinctively masters every situation. Critics argue that his presence removes all stakes from the story, as he essentially has "plot armor" that allows him to break the rules of the game world. Fans argue his "Beater" status and trauma from the Moonlit Black Cats provide depth, but in 2026, he remains the go-to example of "wish-fulfillment" writing that prioritizes coolness over character complexity.

2. Makoto Itou

If there were an award for the most universally despised protagonist, Makoto Itou from School Days would win by a landslide. He is hated not for being weak, but for being a "zeitgeist of worthless male leads." His shameless, serial infidelity and callous treatment of Kotonoha and Sekai make him an irredeemable figure. The show is a deconstruction of harem tropes; Makoto represents what happens when an average teenager is given power without a moral compass. His death is often celebrated by the fanbase, making him one of the few protagonists whose gruesome end provided "catharsis" for the audience.

1. Shinji Ikari

Shinji Ikari is arguably the most analyzed character in anime history, yet he remains a primary "hate sink" for those seeking traditional heroism. Hated for his "whiny" nature and his frequent refusal to "get in the robot," Shinji serves as a realistic portrayal of a 14-year-old suffering from clinical depression and abandonment issues. While critics label him a coward, defenders argue that he is a victim of psychological CA. His actions in The End of Evangelion—specifically the hospital scene—pushed him from "pathetic" to "loathsome" for many, cementing his legacy as a protagonist who is intentionally difficult to love.