Mamimi Samejima (サメジマ・マミ美, Samejima Mamimi) is a high school truant and Tasuku's ex-girlfriend. She is a lonely and depressed chain-smoker, and a pyromaniac. She adopts several pets and names them all "Ta-kun" (タッくん Takkun) as a replacement for Naota's brother, including Naota himself, but later grows uninterested when Naota exhibits independence. Her name is written in Katakana in the manga panel scene, which suggests she is not entirely Japanese.
FLCL
Naota Nandaba is an ordinary sixth grader living in a city where nothing amazing ever seems to happen. After his brother Tasuku leaves town to play baseball in America, Naota takes it upon himself to look after everything Tasuku left behind—from his top bunk bed to his ex-girlfriend Mamimi Samejima, who hasn't stopped clinging to Naota since Tasuku left. Little does Naota know, however, that his mundane existence is on the verge of being changed forever: enter Haruko Haruhara, a Vespa-riding, bass guitar-wielding, pink-haired psychopath whose first encounter with Naota leaves him with tire tracks on his back and a giant horn on his head. Though all he wants is some peace and quiet, when Haruko takes up residence at his parents' home, Naota finds himself dragged into the heart of the greatest battle for supremacy that Earth—and quite possibly the entire universe—has ever seen. [Written by MAL Rewrite]
