---
title: "Otama! ~Otaku Nakama wa Chikkoi Mania~"
description: "Hiroaki is an almighty otaku, well versed in everything from anime and manga to games and special effects, and is called ‘sensei‘ by his online friends. One day"
image: "https://t.vndb.org/cv/74/105274.jpg"
---

# Otama! ~Otaku Nakama wa Chikkoi Mania~

![Otama! ~Otaku Nakama wa Chikkoi Mania~](https://t.vndb.org/cv/74/105274.jpg)

**Alternative Title:** おたマ！～おたく仲間はちっこいマニア～

**Aliases:** OTA-MA

**Developer:** Unison Shift: Accent

**Release date:** Oct 26, 2012

**Platform:** Windows

**Language:** Japanese

**Rating:** 7.2/10 (97 votes)

## Description
Hiroaki is an almighty otaku, well versed in everything from anime and manga to games and special effects, and is called ‘sensei‘ by his online friends. One day, they gathered together for an off-kai and he was surprised that most of them were cute little girls! Even though he is good at taking care of others, he doesn’t do so well with girls. But they all adore him and drag him from one otaku shop to another. Will he be able to satisfy their otaku and ero curiosities?

[From [Hau~ Omochikaeri!](https://omochikaeri.wordpress.com/2012/10/01/october-2012-eroge-releases/)]

## Characters
### Nanase Hiroaki (七瀬 弘明)
- **Gender:** Male
- **Aliases:** Almighty Otaku, としゆき, Toshiyuki
- **Hair:** Black, Spiky, Spiky Bangs
- **Body:** Slim, Adult
- **Eyes:** Black
- **Clothes:** Glasses
- **Personality:** Otaku
- **Role:** Full Brother, Cousin, University Student
- **Engages in:** Shopping

### Aoba Mami (青葉 まみ)
Interests: Eroge and voice acting

- **Gender:** Female
- **Aliases:** みぃたん, Mii-tan, タケハラ, Takehara, 蒼浜みぃ, Aohama Mii
- **Measurements:** Height: 144cm, Weight: 42kg, Bust-Waist-Hips: 72-53-73cm
- **Hair:** Blue, Twin Tails, Long, Spiky Bangs, Parted to Side, Sidehair
- **Body:** Teen, Slim, Pale, Flat Chest
- **Clothes:** Necktie, Arm Warmers, Miniskirt, Thigh-high Stockings, Garter Belt Stockings, Hair Flower, Ribbon Hair Tie
- **Personality:** Otaku, Pervert, Atashi
- **Subject of:** Nymphomania
- **Role:** Idol, Voice Actor, Gamer
- **Items:** Bag
- **Engages in:** Shopping, Daydreaming
- **Eyes:** Tsurime, Cyan
- **Voiced by:** Nishino Miku

### Iina Turunen Oomiya (大宮・いいな・トゥルネン)
Interests: Occult & BL

- **Gender:** Female
- **Aliases:** 漆原 舞衣, Urushibara Mai
- **Measurements:** Height: 139cm, Weight: 33kg, Bust-Waist-Hips: 64-48-69cm
- **Hair:** White, Hime Cut, Waist Length+, Straight, Sidehair, Asymmetrical Blunt Bangs
- **Body:** Teen, Slim, Pale, Flat Chest
- **Role:** Student, Wealthy, Finnish, Half-Japanese, Ojousama
- **Clothes:** Dress, Headband, Thigh-high Stockings, Lolita, Clothing with Ribbons, Unusual Hair Ornaments, Choker
- **Personality:** Otaku, Boku, Pervert, Spoiled, Mysterious, BL Fan
- **Eyes:** Pink, Tsurime
- **Engages in:** Moving
- **Voiced by:** Fujisaki Usa

### Nipponbashi Kirara (日本橋 きらら)
Interests: Anime (especially shounen anime) and manga

- **Gender:** Female
- **Aliases:** 聖騎士天馬, Seikishi Tenma
- **Measurements:** Height: 142cm, Weight: 40kg, Bust-Waist-Hips: 71-52-72cm
- **Hair:** Blond, Waist Length+, Straight, Spiky Bangs, Parted in Middle, Sidehair
- **Body:** Slim, Pale, Kid, Younger Appearance, Flat Chest, Short
- **Role:** Student, Waitstaff, Classmate, Comic Artist
- **Eyes:** Violet, Tareme
- **Clothes:** Mini-dress, Sports Shoes, Thigh-high Stockings, Maid's Dress, Kemonomimi Hat, Patterned Thigh-high Stockings
- **Personality:** Otaku, Ore, Energetic, Chuunibyou, 2D Character Lover
- **Voiced by:** Tamiyasu Tomoe

### Oosu Koyori (大洲 こより)
Interests: Tokusatsu movies & series

- **Gender:** Female
- **Aliases:** テツ, Tetsu
- **Measurements:** Height: 162cm, Weight: 53kg, Bust-Waist-Hips: 84-58-86cm, C cup
- **Hair:** Pink, Long, Braid, Spiky Bangs
- **Body:** Slim, Pale, Young-adult, Big Breasts
- **Eyes:** Violet, Tareme
- **Clothes:** Hat, Scarf, Miniskirt, Blouse, Towel, Spats
- **Personality:** Otaku, Energetic, Wise
- **Items:** Bag
- **Voiced by:** Ogura Yui

### Ootemachi Momiji (大手町 もみじ)
Interests: Cosplay

- **Gender:** Female
- **Aliases:** まじかる☆もっちー, Magical☆Mocchi, もみー, Momi
- **Measurements:** Height: 145cm, Weight: 47kg, Bust-Waist-Hips: 73-54-75cm
- **Hair:** Pink, Twin Tails, Long, Spiky Bangs, Sidehair
- **Body:** Teen, Slim, Pale, Small Breasts
- **Eyes:** Violet
- **Clothes:** Sports Shoes, Thigh-high Stockings, Maid's Dress, Spats
- **Personality:** Modern Tsundere, Otaku
- **Role:** Cousin, Class President, Waitstaff, Classmate, High School Student, Part-time Worker
- **Engages in:** Cosplay
- **Voiced by:** Sonoda Yuuri

### Tenjin Ameri (天神 あめり)
Interests: Military stuff

- **Gender:** Female
- **Aliases:** まりん, Marin
- **Hair:** Brown, Ponytail, Short, Intake, Spiky Bangs, Sidehair
- **Body:** Teen, Slim, Pale, Tiny
- **Personality:** Proactive, Otaku, Mysterious, Jibun
- **Eyes:** Green, Tsurime
- **Clothes:** Jacket, Necktie, Shorts, Knee-high Socks, Goggles
- **Items:** Handgun, Shotgun, Bag, Assault Rifle
- **Voiced by:** Kitami Rikka

### Tenjin Ameri (天神 あめり)
Her real body.

- **Gender:** Female
- **Aliases:** Marin, まりん
- **Hair:** Brown, Ponytail, Short, Intake, Spiky Bangs, Sidehair
- **Body:** Teen, Slim, Pale, Tiny
- **Personality:** Proactive, Otaku, Mysterious
- **Eyes:** Green, Tsurime
- **Clothes:** Jacket, Necktie, Shorts, Knee-high Socks, Goggles
- **Items:** Handgun, Shotgun, Bag
- **Voiced by:** Kitami Rikka

## Shops
- [Official Website](http://accent.amuse-c.jp/project/project27/)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ007564.html)

## Releases
### Japanese
- **2012-08-31**: Otama! ~Otaku Nakama wa Chikkoi Mania~ Trial Edition - [Official website](http://www.softpal.co.jp/accent/project/project27/download.html)
- **2012-09-28**: Otama! ~Otaku Nakama wa Chikkoi Mania~ Momiji Special Trial Edition - [Official website](http://www.softpal.co.jp/accent/project/project27/download.html)
- **2012-10-26**: Otama! ~Otaku Nakama wa Chikkoi Mania~ First Press Special Edition - [Official website](http://www.softpal.co.jp/accent/project/project27/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=17305)
- **2012-12-07**: Otama! ~Otaku Nakama wa Chikkoi Mania~ Download Edition - [Official website](http://accent.amuse-c.jp/project/project27/), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ007564.html), [Gyutto](https://gyutto.com/i/item100649), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0079388/), [DL.Getchu](http://dl.getchu.com/i/item1004237), [DMM](https://dlsoft.dmm.co.jp/detail/spal_0066/)

## Tags
Sexual Content, ADV, Romance, Comedy, Imouto-type Heroine, Male Protagonist, Adult Protagonist, Multiple Endings, Lolicon, Ojousama Heroine, Otaku Heroine, Idol Heroine, Modern Tsundere Heroine, Otaku Protagonist, Fictional Modern Day Japanese Town, High Sexual Content, Group Sex of One Male and Several Females, Student Heroine, Early Sexual Content, Protagonist with Glasses, Cousin Incest, Cousin Romance, Protagonist's Cousin as a Heroine, Harem Ending, Adult Heroine, Nympho Heroine, Cafe, Heroine with Gothic Look, Branching Plot, Other Perspectives, Modern Day Akihabara, Vibrators, Protagonist with a Face, Defloration, Sex in Public Places, Side Portraits, Anal Penetration, Footjob, Only Virgin Heroines, Wake-up Sex, Wedding, Twin Tail Heroine, Missionary Position, Sixty-nine, Super Deformed CGs, Handjob, Genre Savvy Protagonist, Albino Heroine, Seiyuu Heroine, Intercrural Sex, Anilingus, Masturbation, Mercenary Heroine, Design Story, Half-Japanese Heroine, Convention, University Student Protagonist, Cunnilingus, White Haired Heroine, Object Insertion, Harem Ending with Theme, Super Deformed Sprites, Doggy Style, Female Ejaculation, Ejaculation Choice, Outdoor Sex, Naked Sprites, Deepthroat, Submissive Protagonist, Fingering, Social Networking Service, Mangaka Heroine, Delusional Heroine, Cowgirl, Sex in Water, Comic Convention, Heroine with Spats, Chuunibyou Heroine, Choices with 4 or More Options, Gamer Heroine, Sprite Viewer, Discreet Sex, Production of Pornography (Drawn), Bathroom Sex, Mutual Masturbation, Public Masturbation, Facesitting, Sex on Toilet, Legwear Footjob, Non-sexual Cosplay, Single Footjob, Vaginal Masturbation, Straight Lolicon, High School Student Heroine, Heroine with Big Breasts, Heroine with Small Breasts (Non-Loli), Loli Heroine

## More Games from Unison Shift: Accent
- [Oshiete Re: Maid](https://pinovel.net/v3543)
- [Chu x Chu Idol](https://pinovel.net/v664)
- [Chu x Chu Paradise ~Encore Live~](https://pinovel.net/v665)
- [Unity Marriage ~Futari no Hanayome~](https://pinovel.net/v818)
- [Shikotama Slave ~Aruji de Shimai na Tenshi to Akuma~](https://pinovel.net/v2199)
- [Chu x Chu Idol 2 -Melodies x Memories-](https://pinovel.net/v4886)
- [Chu x Chu! On The Move ~Kenran Jikuu no Festival~](https://pinovel.net/v7404)
- [Prismatic Princess ☆ Unison Stars](https://pinovel.net/v8175)
- [Otama! ~Otaku Nakama wa Chikkoi Mania~](https://pinovel.net/v10637)
- [Ryuusei☆Kiseki -Shooting Probe-](https://pinovel.net/v11381)

---
*View the full details at [pinovel.net/v10637](https://pinovel.net/v10637).*

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