Samejima Mamimi (FLCL) is a high school truant, and Nandaba Tasuku's homeless ex-girlfriend. She is lonely and depressed, adopting several pets and naming them all "Takkun" as a replacement for Naota's brother, and might be a pyromaniac. She also thinks of Naota as a replacement for Tasuku, but later grows disinterested when Naota exhibits independence.
Maimimi is interested in video games, photography, and the occult.