Nyako is an alien (a black 'n white kitty boy) who live in the Yokohama district of Tokyô and attends his first grade at the Grammar School of Nizi Nanatsu (Seven Rainbrows). He was transported from his birth planet to Earth thanks to Unchiko, with her fabolous "Transfer Machine", along with his older brother (or so it seems) Hachi Inu Chin Irozu and his mascotte, Cha·pi. Altough his cute look, he's rude, he's dim-witted and it's kinda mute. It seems like cold and reserved (very weird for a 5 yr-old...), but once he speaks with ugly women or men he doesn't like (Unchiko and Kotaru) he uses a cold, low voice, really scary and gots also a lots of echoes( O_o ). Instead, when he speaks to handsome men (Sei and Hachi), he use a sweet voice, a typical 5-year-old boy's voice. His fav. hobbies are to stalk handsome guys - w/out knowing it - or to do weird stuff. His gathered anger takes form in a strange light pink beam (and sometimes also in a strange gummy liquid) that he shoots from his...lower parts. It must be noticed that he always ends up each his sentences with the word "myo" ("Myo" is the honomatopeic sound for the kitties' "meow" in Japanese).