His personality changed once he realized he was nothing more than a tool to him, and thus betrayed his master. Later chapters would reveal that the Reaper was once a person who admired his master immensely and worked tirelessly to be recognized by his idol. During the time when the Reaper threatened to cut up Irina in front of the class, his passive demeanor made the class unable to feel any sense of fear (something Karma actually dreaded). Like his former master, he sports a very amicable smile and is easily perceived to be a kind, harmless person. His ruthless demeanor remained intact when he augmented himself with tentacles as shown when he impaled Kaede Kayano without a second thought. He views the children of Class 3-E as nothing more than obstacles, and was willing to drown them as part of his assassination attempt on Korosensei. The Reaper acts with a complete lack of morality and concern for others. As such, dark-colored tentacles replace all of his limbs his arms are now shaped identically like Korosensei's and numerous tentacles protrude from his head as well as from the bottom of his torso to replace his legs.ДЄs one of the world's best assassins, the Reaper is ruthless and cunning, and is willing to use any means, no matter how amoral, in order to attain his goals. He is also apparently able to use his bloodlust to give himself a black specter-like appearance.Дuring the final arc, after being augmented with a stronger version of the Antimatter Tentacles from Shiro, the Reaper takes on the appearance of a large and colossal tentacle monster shaped much like Korosensei's first tentacle form, albeit with darker colors. In truth, the Reaper has a skinless, skull-like visage after intentionally cutting off his own face. When working as an assassin, he wears black clothing. While disguised as a florist, he has silver hair, amber eyes, and is always seen with his cap. 5.2 Post-augmentation of the Antimatter tentaclesД¬ontradictory to his name, the Reaper has a somewhat innocent looking and friendly smile.5.1 Pre-augmentation of the Antimatter tentacles.4.2 Master and Apprentice - Final Boss Time.

The reaper