The line originates in Mobile Suit Gundam 00, the 2007 anime series in which Setsuna F. Seiei, a young Gundam Meister for the organization Celestial Being, repeatedly declares his identity as a Gundam rather than merely its pilot. The phrase became one of the show's most quoted moments, spreading through anime clips, AMVs, and social media edits long after the series ended. Its staying power comes from its bold simplicity, making it a shorthand for self-definition and resolve in anime culture.