Canti

Canti (カンチ, Kanchi) is a medical robot with what looks like a television set for a head. He was manufactured by Medical Mechanica, but taken over by Atomsk as a way to escape them. After having his head broken by Haruko, he is recruited by her as an assistant; however, he proves to be no good for much other than washing dishes and fetching drinks for the family.

Atomsk can manifest through Canti, with Naota being the catalyst. Atomsk's symbol appears on Canti's screen when he absorbs Naota; the symbol is a corruption of the kanji characters for "adult" (大人). This symbol also appears on him when Naota "swings the bat" in Full Swing. The symbol that appears when Canti is absorbed by the terminal core in FLCLimax is similar, but uses the characters for "child" (小人) instead. When Naota is absorbed, Canti's physical strength is increased and he gains the ability to transform into an antitank gun, called the "Overdrive Technique" in the manga.

The emotions of Canti are very human-like, despite his looks. He is embarrassed about his broken head (where Haruko hit him) and is looking for the pieces to glue back together in episode two. He wears the box on the back of his head for the same reason. Canti seems to like porn, as he was reading it in the 7-11. It is also stated in the novel, that Canti spends 3 hours at a time looking though 'perverted magazines'. He is also extremely polite, extending a helping hand to Lieutenant Kitsurubami even after she attempted to destroy him.

Canti also dons a halo and fake wings which Haruko puts on him earlier in the episode. Mamimi is convinced that Canti is an angel. She calls him "Canti-sama" after "The Lord of Black Flames" in a video game she plays. The rest of the cast call him by this title throughout the rest of the series. Apparently, he can also eat curry with his "mouth" (which is just a grille), but it is never really explained how.

While Canti doesn't speak to any character in the anime, he frequently speaks to Naota in the manga, and seems to be more sympathetic to Naota's situation, to Naota's annoyance. When first synchronized with Naota, the mouth is less monstrous as opposed to the anime, and Naota fully connects with Canti through a plug that goes in his eye instead of a screw-in light bulb in the back of his head.

Source: Wikipedia