This picture of Saitama pronouncing OK with a dry and indifferent expression has become a famous meme. Its origin comes from the manga episode when Saitama confronts Lord Boros. After his first punch on Boros, Saitama's otherwise lethal attack destroys Lord's armor but Boros unexpectedly remains unaffected and says that the armor he used to seal his all too powerful strength is now broken. In response, Saitama simply utters OK with Stonks guy face. One-Punch Man OK Sticker.