"O Kawaii Koto," which translates to "How cute," is a signature catchphrase and iconic expression used by Kaguya Shinomiya from the anime and manga series Kaguya-sama: Love Is War. The meme typically features Kaguya with a condescending, half-lidded gaze, looking down on her romantic rival, Miyuki Shirogane, usually occurring within his own fearful imagination. It is widely used across the internet to mock someone's naivety, vulnerability, or predictable behavior, often in a playful yet patronizing tone. Since its debut, the expression has become a staple in anime reaction culture, representing the ultimate "smug girl" energy for situations where someone thinks they are being clever but is actually being transparently foolish.