17 Anime Characters Who Kept MAJOR Secrets From Everyone

Voting Rules

Vote up the characters with the biggest secrets.

The best anime stories create a sense of suspense, often by featuring a character who's harboring a secret. Whether it's a kid who doesn't want anyone to know that he called himself "Dark Flame Master" in middle school, or a bunch of teenagers who join the military without mentioning to the higher-ups that they're actually man-eating monsters, anime characters with secrets have explosive plot potential.

Tension builds quickly when viewers know a secret before the rest of the show's cast have any idea what's really going on. Other times, viewers are left in the dark, and get to react with the rest of the cast when the secret drops. No matter what, the unraveling of a juicy secret always makes for a good story. 

Photo: Bones / J.C. Staff

  • Naruto is a show built on mystery. One of the show's biggest secrets is kept by Itachi Uchiha, who murdered his clan (sans his younger brother Sasuke). At the time, Itachi claimed that he did it to test his abilities, prompting Sasuke to swear vengeance. However, the truth is that Itachi was trying to save Sasuke's life.

    When Itachi was 13, a Konoha city official named Danzo gave him a choice: he could either he kill his whole family with the exception of himself and his eight-year-old brother, or the entire clan would be wiped out. Itachi took the deal, and kept the burden of guilt to himself. Up until his death, only a few members of the Akatsuki knew what drove Itachi to slaughter his entire clan.

    7,026 votes
  • 2
    5,445 VOTES

    Koro-Sensei Of 'Assassination Classroom' Didn't Really Blow Up Anything

    Koro-Sensei Of 'Assassination Classroom' Didn't Really Blow Up Anything
    Photo: Lerche

    Assassination Classroom is (supposedly) about Koro-sensei, a weird tentacle monster with a smiley face for a head who blew up the moon. If a group of middle schoolers can't stop him within a year, Koro-sensei plans to destroy the Earth as well. 

    However, not only is Koro-sensei not planning on destroying the Earth, he wasn't even responsible for the whole moon thing. The lunar exodus was actually an accident committed by an antimatter-infused rat. 

    Koro-sensei lied to the world so that he could teach class 3-E at Kunugigaoka Junior High School. Back when Koro-sensei was human, that class was taught by the woman he loved, and the creature is intent on making sure the students achieve their full potential. 

    5,445 votes
  • Yato Of 'Noragami' Used To Wreak Havoc Upon Humanity
    Photo: Bones

    Yato of Noragami is a self-proclaimed "Delivery God" who performs odd jobs in exchange for ¥5 offerings, and who hopes to eventually gain a following of worshippers. What he doesn't want anyone to know is that he used to be a god of war and calamity. In a former life, he was fully dedicated to destruction and murder, and now that he's trying to turn over a new leaf, he doesn't want anyone to discover his sordid past.

    6,848 votes
  • 4
    5,013 VOTES

    There Are Titan Shifters Working Undercover In 'Attack On Titan' 

    There Are Titan Shifters Working Undercover In 'Attack On Titan' 
    Photo: Wit Studio

    Everyone in Attack on Titan is living in a dystopian Hellscape where man-eating humanoid beasts called Titans keep humanity confined inside a cramped, walled-off city. A small group of soldiers, called the Survey Corps, are tasked with eradicating these monsters. What they don't know is that enrolled in the Survey Corps are a few of the very same creatures that they're trying to defeat. 

    Annie Leonhardt, Reiner Braun, Ymir, and Bertolt Hoover all possess the ability to transform into Titans, and all of them have either directly attacked the city, the Survey Corps, or both. It's not until the end of the first season that Annie's identity is discovered, and Reiner, Ymir, and Bertolt don't admit the truth until season two. 

    5,013 votes
  • 5
    1,583 VOTES

    Ray Is Isabella's Spy In 'The Promised Neverland'

    While the terrifying secret of Grace Field House comes as a huge shock to Norman and Emma, Ray has known the truth all along. In fact, he's known about this secret ever since he was a fetus in the womb thanks to his incredible memory. But what's even more shocking is the fact that Ray never told anyone about the outside world or the grisly fates of the children.

    In order to secure their safety, Ray acted as a spy for Isabella. He was forced to keep quiet even when he knew his friends at the orphanage were being led to their deaths. Of course, his role in the series and his relationship with Isabella is made even more complicated by the end of the first season.

    1,583 votes
  • At first, Sōsuke Aizen seems like the responsible, slightly nerdy captain of the Fifth Division in the Gotei 13. He's a loyal member of Soul Society who is perfectly content to work within its rules. Then, when he is mysteriously "murdered," everyone blames Ichigo and his friends, as they are newcomers to the group. 

    As it turns out, Aizen isn't actually dead, he just doesn't want to serve Soul Society. His true goal — which he's hidden from just about everyone save for a few loyal followers — is to destroy Soul Society, and he doesn't care who he has to step on to achieve his dream. 

    3,417 votes