Nabi is a male cat as well as Doki's love interest in the story. He is reluctant to return Doki's love at first, finding her antics annoying and fearing the social repercussions, but grows to tolerate and eventually reciprocate it. His Facebook account states that his surname is goyang'i and that he is catholic. He wears a green scarf and seems to have some skill in martial arts. In Step 3 it is shown that he works as a paperboy. Nabi translates to "butterfly", and is a common name for a pet cat in South Korea.