Nemu Fujimi

Nemu Fujimi ( ねむ, Fujimi Nemu) is a middle school student at Yotsuba University Affiliated Junior High School, a classmate of Mahiro Oyama, and friends with Nodoka Fushimi and Aoi Tachikawa. She sits at the desk in front of Mahiro's and is almost always seen sleeping through her lessons. She is voiced by Mia Sakurai in the anime series.

Personality
Not much is known about Nemu or her personality. She appears to suffer from some kind of sleep disorder, possibly narcolepsy, which causes her to fall asleep during her lessons and even during her final exams. Despite this, she is not a heavy sleeper as she was easily woken up when Mahiro Oyama bumped the back of her chair so she wouldn't sleep through the rest of the test.

Her actual academic performance is unknown, as well as how her sleeping affects it. It is entirely possible that she is simply bored by her lessons which contributes to her sleeping, though this is unconfirmed. She is resourceful though, as she is smart enough to bring a cardigan with her in the event that it becomes too cold.

During the rare moments when she is seen awake, she is shown to be very quiet and rarely talks to anyone. It is unclear who her friends are, though she appears to be close with Nodoka and Aoi. Nodoka was seen watching her in the locker room during gym class. Nodoka and Aoi were also seen giving chocolate to Nemu on Valentine's Day. She also appeared grateful that Mahiro woke her up during their final exams. Asahi Ōka tried to befriend her in grade school to no avail.

It is later revealed that she is an avid MMORPG gamer, just like Mahiro. This partially contributes to her sleeping in class since she's tempted to pull all nighters playing online games just like Mahiro does. Mahiro befriended her in an online game by chance without realizing that it was her, though Nemu figured it out once Momiji also decided to try it out and used their real names. In sharp contrast to real life, Nemu is extremely talkative and friendly when playing with others online. Although she didn't reveal who she was, the fun she had playing with Mahiro and Momiji inspired her to finally talk to them in real life for the first time.

Etymology

 * The name Nemu means "sleep" (ねむ) (nemu).
 * The name Fujimi means "wealth" (富) (fu) and "samurai" (士) (ji) and "look" (見) (mi).

Trivia

 * Nemu's full name was first given during a blog post by Onimai: I'm Now Your Sister! author Nekotofu who gave it during a Q&A.
 * According to the afterword of Doujinshi Volume 9, Nemu is Nekotofu's favorite character from the series.
 * According to "Mahiro and the Guidance of the Stars", Nemu is a Sagittarius, which would place her birthday at any point between November 22 and December 21.

Manga

 * Mahiro's First Day
 * Mahiro's Difficult Class
 * Mahiro and Conversation
 * Mahiro's Final Exams
 * Mahiro the Patissier
 * Asahi and Momiji
 * Mahiro and the Guidance of the Stars
 * Mahiro's Surprise Party
 * Mahiro Pretties Up
 * Mahiro's Big Secret (Part 1)
 * Mahiro and the Seasonal Attire
 * Mahiro and Visitation Day
 * Mahiro and Swim Class (Part 1)
 * Mahiro and Swim Class (Part 2)
 * Mahiro, the Sun, and the Northern Wind
 * Mahiro's Second Semester Debut
 * Nemu's Summer Vacation
 * Mahiro and the Charming School Festival (Part 1)
 * Mahiro and the Charming School Festival (Part 2)
 * The Boys' Shift Change
 * Mahiro and the Fan World
 * Mahiro's Field Day