Sweet Mask puts such a priority on his status and reputation that he is willing to go so far as to consider murdering all the S-class heroes present at the raid to ensure that the Hero Association doesn't hear of his failure against Fuhrer Ugly and the way he lost his composure, but he regains his self-control at the last second. He also places high value in his own popularity and status, demonstrating a very narcissistic and highly opinionated view of himself. Because of this, Sweet Mask stays in the A-Class Rank 1 position to prevent unworthy heroes from promoting to S-Class. He notes that only promotions to S-Class or A-Class are fit for his attention as they are the heroes who draw the most attention from the public, and hence, any heroes in those ranks who earn themselves negative reputations would drag his reputation down as well. Sweet Mask is shown to adhere to any method that makes heroes popular. Sweet Mask also has no qualms in attempting to nearly murder brainwashed innocent victims like Narinki's Private Squad or considering the murder of fellow heroes Atomic Samurai's Disciples. He ignored his superiors' orders and killed the caveman instead. This is shown when he mercilessly dispatches a group of captured aliens from the Dark Matter Thieves whom he declared to be evil, claiming to have merely executed justice on the spot, and again when he was ordered to bring an escaped caveman back to the lab. Anything that he declares as evil must be swiftly and thoroughly exterminated. He is shown to have a burning hatred for anything that he sees as evil, including those whom he considers being evil’s accomplices and those who lend a helping hand to said accomplices. However, befitting the darker side of Sweet Mask's name, he has a hidden merciless nature. Moreover, Sweet Mask can even stress himself out when thinking about new ways to please his fans. He also genuinely cares for the well-being of the citizens around him and wishes happiness upon every living thing in the universe. He appears to be quite popular and has quite a charismatic way of talking. Sweet Mask has stated that he believes that heroes are to protect the citizens, and if they can't do that, they must become strong enough to be able to do so.

This would explain the differences in his appearances which some likened to plastic surgery. Sweet Mask has the ability to alternate his biophysical semblance to the point of even masking his genetic & thermal signature.

Because of his seeming Ugmon characteristics.

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