Ima Sugu Oniichan ni Imōto da tte Iitai!

;{{Nihongo|Kanade Mori|森 夏奏|Mori Kanade}}

:{{Voiced by|Yūko Gibu}}

:She is the homeroom teacher in charge of Year 1 Class 8 at Asaoka Academy.

;{{Nihongo|Kimika Haida|拝田 希実花|Haida Kimika}}

:{{Voiced by|Yōko Hikasa}}

: She is Rikuto's classmate and Class 8's chairman as of chapter 6 in the manga. She is a timid and quiet girl. The first time spoke loud and clearly is in chapter 16 in the manga. She attends the same class as Rikuto. She was originally a supporting character.

;{{Nihongo|Rikuto Mitani|三谷 陸斗|Mitani Rikuto}}

:{{Voiced by|Nobunaga Shimazaki}}

: He is the protagonist who attends Asaoka Academy as a first year. He is Class 8's vice chairman as of chapter 6 in the manga. He fell in love with Ayumu in her female form without knowing who she is. Rikuto had his doubts when it comes to knowing Ayumu's true gender, so it wasn't until chapter 11 that his thoughts were confirmed. At first, he didn't accept having a new family but then he gradually accepted them. He didn't call Ryouko "mom" because he thinks he need just one mom. He would not let Ryouko cook his favorite meal, oyakodon, because that is what his deceased mother used to make. He eventually let Ryouko cook him some oyakodon. He finally calls Ryouko "mom" in chapter 16 of the manga. He crushed Ryuugo at soccer in middle school when he was ace. Since then, Ryuugo tried to get him to join the soccer club, although Rikuto said it was a one time coincidence. He carries a wristwatch but because it is for girls, he carries it on his belt (It is a memento from his deceased mother.). After what happened to his father, he swore never to forgive anyone who would steal someone else's happiness. He and Ayumu finally confessed their feelings for one another, not as brother and sister, but as boy and girl. Then they became a couple. He does not remember but he met Ayumu when they were only three years old.

;{{Nihongo|Ayumu Mitani|三谷 歩夢|Mitani Ayumu}}

:{{Voiced by|Minori Chihara}}

: She is Rikuto's step-sister. Due to her mother, she always dresses like a boy at home. When she is at school, she wears a female uniform. She attends the same class as Rikuto. When she was younger, she always wanted a kind older brother. When she sleeps, she dreams of a kind older brother spoiling her. That was her first love. She and Rikuto finally confessed their feelings for one another, not as brother and sister, but as boy and girl. Then they became a couple. She doesn't remember but she met Rikuto when they were only three years old. The older brother in her dream is actually Rikuto.

;{{Nihongo|Matsuri Nanase|奈々瀬 奉莉|Nanase Matsuri}}

:{{Voiced by|Kanae Itō}}

: Nanase has been Rikuto's "ally" since they were in middle school. She attends the same class as Rikuto. She knows Ayumu's real gender. She is very popular amongst boys and gets confessed to a lot, even though she rejects them just as much.

;{{Nihongo|Mao Shigemori|茂森 真央|Shigemori Mao}}

:{{Voiced by|Ai Kayano}}

: Due to her grandfather, she wears a male uniform at school, and because of this, she is popular among the female students. She even wears male underwear. She attends the same class as Rikuto. She likes cute things.

;{{Nihongo|Shōsuke Yokoyama|横山 章介|Yokoyama Shōsuke}}

:{{Voiced by|Yoshitsugu Matsuoka}}

:He is Rikuto's classmate. He likes to act like a gentleman.

;{{Nihongo|Naoma Mitani|三谷 直真|Mitani Naoma}}

:{{Voiced by|Kazuya Nakai}}

:He is Rikuto's father. He only lets Ryouko call him Nao-tan. He works as a chief at a store he owns. Rikuto and his friends sometimes visit. Because he can't wear a ring at work, he wears a wristwatch, same one Ikumi wore, instead. He took off his "ring" in chapter 14, saying that he has moved on and Rikuto should too. When Rikuto was very young, he let an old friend take care of the expenses in the "new" store. Then he lost contact with his friend and never saw him since. With most of the money gone, he couldn't pay for Ikumi's surgery that she really needed and died.

;{{Nihongo|Ikumi Mitani|三谷 直真|Mitani Ikumi}}

:She is Rikuto's deceased mother. She died when he was very young. Rikuto has her wristwatch, which was used as a wedding ring.

;{{Nihongo|Ryouko Mitani|三谷 良子|Mitani Ryōko}} (Maiden Name Tsunoda)

:{{Voiced by|Yui Horie}}

:She is Ayumu's mother. She is a 35-year-old professional make-up artist who looks ten years younger.

;{{Nihongo|Miku Kanzaki|神崎 未玖|Kanzaki Miku}}

:{{Voiced by|Ayana Taketatsu}}

:She is a 12-year-old girl who lives next door to the Mitani family's apartment.

;{{Nihongo|Ryuugo Kobayashi|小林 琉伍|Kobayashi Ryūgo}}

:{{Voiced by|Megumi Ogata}}

:He is the sophomore of Asaoka Academy and the ace striker of soccer club. He and Rikuto were senior and junior since middle school.

;{{Nihongo|Chisato Sumiyoshi|住吉 千里|Sumiyoshi Chisato}}

:{{Voiced by|Eriko Nakamura}}

:She is Ayumu's cousin. She is originally from Love, Elections & Chocolate.

;{{Nihongo|Satsuki Shinonome|東雲 皐月|Shinonome Satsuki}}

:{{Voiced by|Yū Asakawa}}

:She is Matsuri's childhood friend. She is originally from Love, Elections & Chocolate.

;{{Nihongo|Kōzō Shigemori|茂森 鋼造|Shigemori Kōzō}}

:{{Voiced by|Yōsuke Akimoto}}

:He is Mao's father.

In an interview with ASCII Media Works, the game's producer Akira Sakamoto said that there had been requests from "young users" for all ages games, so Imaimo was made to respond to that "new challenge". He also said that the game's title is meant to express the feelings of the heroine in the second half of the story.{{cite web | url = http://news.dengeki.com/elem/000/000/412/412830/index-3.html | title = 【電撃G'sオンライン】第10回はPC『いますぐお兄ちゃんに妹だっていいたい！』略して『いま妹』!! 開発者インタビューも掲載 - 電撃オンライン |date=October 6, 2011| accessdate = February 24, 2013 | publisher = ASCII Media Works | language = Japanese}} The character designer and artist is Yū Akinashi, the music is by Elements Garden, the music producer Shigeru Saitō, and the script is by Kō Katagi.{{cite web | url = http://imaimo.com/#spec | title = Imaimo official site | publisher = Fairys | accessdate = February 24, 2013 | language = Japanese | archive-date = April 6, 2021 | archive-url = https://web.archive.org/web/20210406030023/http://imaimo.com/#spec | url-status = dead }}{{cite web | url = http://www.famitsu.com/news/201202/02009355.html | title = 『恋チョコ』のスタッフが贈る新作『いますぐお兄ちゃんに妹だっていいたい！』 - ファミ通.com | accessdate = 2013-03-07 | date = 2012-02-24 | publisher = Famitsu | language = Japanese}}

The PlayStation Vita version of the game received a total score of 27/40 by Famitsu.2014-04-15, [https://gematsu.com/2014/04/famitsu-review-scores-issue-1324 Famitsu Review Scores: Issue 1324], Gematsu It was the 574th best selling video game of the year in Japan in 2014, with 6,068 units sold.{{cite book |title=ファミ通ゲーム白書2015|date=2015|language=Japanese|publisher=KADOKAWA}}

{{reflist}}

• [http://imaimo.com/ Official website] {{Webarchive|url=https://web.archive.org/web/20210406030023/http://imaimo.com/ |date=2021-04-06 }} {{in lang|ja}}
• {{vndb|7766}}

{{Dengeki Daioh}}

{{DEFAULTSORT:Ima Sugu Oniichan ni Imoto da tte Iitai!}}

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