Hachiko is an alien (a doggy boy) who live in the Yokoma prefecture of Tokyô and he attends his Fifth Grade at the Nizi Nanatsu (Seven Rainbrows). He was transferred from his planet to Earth thanks to Unchiko, with her fabolous "Transfer Machine", along with his younger brother (or so what) Nyan Neko Chin Irozu and hois mascotte, Cha·pi. His main weapon is his unbelievable cuteness. He's in fact sweet, tender, naïve and he likes to play silly tricks and to laught a lot. His fav hobby is to speak with his animal little thing, Cha·pi. His gathering of anger manifests itself as a pink beam made of hearts, that he casts from his...errr...private parts. It's noticeable that he always ends up his sequences with "garu" ("Garu"is the honomatopeical from the howls of the wolves in Japan).