Itsuki's former college classmate. Although she is not attempting to be a professional author like Itsuki is, she enjoys reading his works. She supports him, and Kani's work. 

The story follows the everyday life of Itsuki, a novelist and "modern day Pygmalion" who works day in and day out to create the ultimate younger sister. He's surrounded by various other characters: a beautiful genius writer who loves him, his big-sisterly classmate from college, a fellow male writer, a sadistic tax accountant, and his editor. They're all looked after by Itsuki's perfect younger step-brother, Chihiro, who has a serious secret. 
 
(Source: Anime News Network) 
 
Note: The first episode received an early screening at a special event held at Shinjuku Piccadilly, Tokyo on 06.09.2017.

__Height:__ 164 cm

[Website](https://mausu.net/talent/kakuma-ai.html) | [Twitter](https://twitter.com/aimausu)

**Non-Anime Roles:**
~!- Amber Butterfly - Kemono Friends (VG)
- Amour - Memento Mori (VG)
- Chloe - Criminal Girls 2 (VG)
- Concetta - Fate/Grand Order: Edmond Dantes (Drama CD)
- Edelgard von Hresvelg - Fire Emblem Three Houses (VG)
- El_Clear - Muse Dash (VG)
- Exeter - Azur Lane (VG)
- Flora - Fire Emblem Fates (VG)
- Hikari Tominaga - White Day: A Labyrinth Named School (VG)
- Ion - Ar nosurge ~Umare Izuru Hoshi no Inoru Uta~ (VG)
- Ion - Ciel nosurge ~Ushinawareta Hoshi e Sasagu Uta~ (VG)
- La Coiffe - Granblue Fantasy (VG)
- Lancelot Akirei - Onigiri (VG)
- Laplace - Goddess of Victory: Nikke (VG)
- Ludmilla - Goddess of Victory: Nikke (VG)
- Mary Shelley - Rinka Nation (VG)
- Momoka Yamabuki - ISLAND (VG)
- Rin - Granado Espada (MMORPG)
- Rosaria - Genshin Impact (VG)
- Rulutieh - Utawarerumono: Itsuwari no Kamen (VG)
- Rurutie - Azur Lane (VG)
- Ryu - Hero Must Die (VG)
- Sarasa Morikawa - Blue Reflection: Maboroshi ni Mau - Shoujo no Ken (VG)
- Sora Ikushima - Tokyo Xanadu (VG)
- Takao - Azur Lane (VG)
- Unicorn - Azur Lane (VG)
- Yuri Sakizaki - The King of Fighters XIV (VG)!~

[BlueSky](https://bsky.app/profile/ragsdalesaravo.bsky.social) | [Twitter](https://x.com/ragsdalesara) | [Instagram](https://www.instagram.com/ragsdasical/)

Itsuki Hashima is a novelist who's hopelessly enamored with the idea of little sisters and is constantly surrounded by colorful characters. A world class genius and love-guru who's beauty almost seems a waste on her. A girl who's constantly troubled by her friendships, love interests, and can't even find refuge in her dreams. A ridiculously talented illustrator. Each of them have as many problems and worries as the next and they never have a dull day together as they play games, travel, and work together. From the same author of the famous I Don't Have Many Friends, Yomi Hirasaka!
 
(Source: Yen Press)

Ayu Shirakawa left the countryside and set off for Tokyo. There, her cousin Miyako Shirakawa introduced her to the popular author, Hikari Kairou, and it was decided that she would work for her as both her caretaker, and as a warden.
 
This is just the ordinary love story about how a lonely person became not alone.

Original "chibi" styled animations of Imouto sae Ireba Ii. posted on the anime's official Twitter.

Itsuki Hashima is a novelist who's hopelessly enamored with the idea of little sisters and is constantly surrounded by colorful characters. A world class genius and love-guru who's beauty almost seems a waste on her. A girl who's constantly troubled by her friendships, love interests, and can't even find refuge in her dreams. A ridiculously talented illustrator. Each of them have as many problems and worries as the next and they never have a dull day together as they play games, travel, and work together. From the same author of the famous I Don't Have Many Friends, Yomi Hirasaka!
 
(Source: Yen Press)
 
Note: Includes four extra chapters.