The Frowning Kei meme features the character Kei Shirogane from the popular anime and manga series 'Kaguya-sama: Love is War.' The image captures her signature look of utter disdain and cold judgment, which she often directs at her brother Miyuki. It became a viral sensation within the anime community as the ultimate reaction image for expressing disappointment, annoyance, or the feeling of being completely unimpressed by someone else's actions. The meme is frequently used on social media platforms like X (formerly Twitter) and Reddit to 'clown' on bad opinions or to describe relatable everyday situations where one is left feeling thoroughly disappointed by the world around them.