Annyong Bluth is the adopted son of George and Lucille Bluth, who originally wanted to adopt to appear more charitable. Lucille accidentally finalizes the adoption when she signs papers without paying attention during an argument with Buster over cottage cheese.Once Annyong arrives, Lucille wants to send him back, but decides to let him stay after seeing how his presence makes Buster jealous. She neglects him and forgets he exists from time to time, which is compounded by the fact he seems to disappear.Lucille sends him away to study at the Milford School.Background: Annyong is what the Bluth family calls the boy because it is all he says when he arrives, so they assume it is his name. It means hello in Korean. His name actually being Hel-loh just further confuses them. His placement with the Bluth family turns out to not be as random as the Bluths believe.