Oreimo

| demographic = ''Seinen'' | magazine = Dengeki G's Magazine | first = January 30, 2009 | last = April 4, 2011 | volumes = 4 | volume_list = }}

| network = Tokyo MX, TV Saitama, tvk, CTC, TV Aichi, TVQ, TVh, MBS, AT-X, BS11 | network_en = | first = October 3, 2010 | last = December 19, 2010 | episodes = 12 | episode_list = List of Oreimo episodes }}

| first = February 22, 2011 | last = May 31, 2011 | runtime = 24 minutes each | episodes = 4 | episode_list = List of Oreimo episodes }}

| network = Tokyo MX, tvk, Tochigi TV, Gunma TV, TV Saitama, CTC, TV Aichi, TVQ, TVh, ABC, BS11, AT-X | network_en = | first = April 7, 2013 | last = June 30, 2013 | episodes = 13 | episode_list = List of Oreimo episodes#Oreimo 2 (2013) }}

| released = August 18, 2013 | runtime = | episodes = 3 | episode_list = List of Oreimo episodes#Oreimo 2 (2013) }}

short for |group=lower-alpha|lead=yes}} is a Japanese light novel series written by Tsukasa Fushimi, with illustrations provided by Hiro Kanzaki. The story depicts high school student Kyosuke Kosaka who discovers that his standoffish younger sister Kirino is actually an otaku with an extensive collection of moe anime and younger sister–themed eroge she has been collecting in secret. Kyosuke quickly becomes Kirino's confidant for her secret hobby.

ASCII Media Works has published 17 volumes in the series under its Dengeki Bunko imprint from August 2008 to September 2021. A manga adaptation drawn by Sakura Ikeda was serialized in ASCII Media Works' ''Dengeki G's Magazine'' between 2009 and 2011. AIC produced a 12-episode anime adaptation in 2010, with four additional episodes streamed online in 2011. A-1 Pictures produced a 13-episode second anime season in 2013 with 3 more episodes streamed online later that year. Bandai Namco Games developed three visual novel video games from 2011 to 2013 for the PlayStation Portable and PlayStation 3 consoles. Provided by Wikipedia