Kongou is one of the ship girls in Kantai Collection, a Japanese franchise that began as a browser game in 2013 and later expanded into anime and other media. As a cheerful, tea-loving battleship girl with a habit of slipping English words into Japanese speech, she quickly became a fan favourite. Her No problem, desu line captures that personality in a single phrase, and fans have reused it in edits, reaction videos and soundboards ever since because it works as a friendly, instantly recognisable answer.